RTV Silicones

A.S.A.P. Technologies offer a range of Momentive RTV Silicones (formerly GE Silicone) , including SnapSil* brand, with distinct properties that can meet specific needs for automotive, aviation and aerospace, display, consumer and industrial electronics, solar and energy applications. Our RTVs are valued for their electrical and thermal conductivity, heat resistance and adhesion to plastic and metal substrates. They are ideal for a number of industrial sealing and assembly applications that are subject to extreme temperature, ultraviolet light and/or chemical exposure.

Aviation and Aerospace

Electronic component and frame assembly needs in the Aerospace Industry are served through RTV adhesives, potting, coating, encapsulation and sealing materials that withstand stress and temperature extremes.

  • Cockpit Instruments
  • Electronic Power Equipment
  • Circuit and Terminal Protection
  • Wire Sealants
  • Engine Gasketing
  • Engine Electronics Potting
  • Cargo Door Seals
  • Window Assembly Sealants
  • Weather Strip Adhesive
  • Lighting Sealants
  • Ventilation Ducts
  • General Maintenance

Consumer Electronics and Microelectronics

RTVs are used extensively in the Electronic and Electric industries to ensure long-term, reliable performance of critical components and electronic circuit assemblies. Silicone adhesives, sealants, conformal coatings, potting gels, encapsulants and thermal management materials play a vital role in many of today’s demanding electronic applications.

  • Power Modules
  • Converters
  • Solar Cells
  • Hybrid ICs
  • Micro-Electronics
  • PCB Fixing & Sealing
  • High Voltage Part Solution
  • Sensors
  • Membrane Switches
  • LEDs
  • Photo Couplers

What Is Adhesion?

Adhesion refers to the bond between two adjacent materials and is related to the force required to affect their complete separation.

Types of Failure

  • Cohesive failure (silicone breaks)
  • Adhesive ruptures leaving adhesive on both substrates involved in the bond
  • Adhesive failure (bond breaks): Adhesive pulls cleanly away from the substrate

Why Is Surface Preparation Important?

Substrate preparation is critical to good preparation good adhesion. Poor substrate preparation can contribute to adhesion problems to remove contamination. Process oils, mold release, dirt, grease, etc. can be done by:

Appropriate solvent cleaning:

  • Acetone, IPA, ethyl acetate, toluene, etc.
  • Wipe, immerse

Detergent cleaning:

  • Soap and water
  • Wash and water rinse, dry thoroughly

For Difficult To Bond Substrates/Surfaces

For difficult areas, mechanical roughening may be required. Such processes include:

  • Using Substrates like Sandpaper, Sand Blasting, or metal Wool
  • Chemical Treatments like Oxalic Acid/Sulfuric Acid/Uoric Acid mixed with distilled water alters the surface chemically to better receive adhesion
  • Use of Primers. This process promotes adhesion through different chemical reactions with the desired surface. This process is more typically used with plastics and we recommend that the primer is applied in thin layers and is allowed to dry fully at room temperature before applying any silicones.
Property
Data Sheets
Color
Specific Gravity
Solids Content (%)
Primary Solvent(s)
Flashpoint,
(Pensky-Martin Closed Cup)
Dry Time(1) , colder environment (minutes)
Dry Time(1) , warmer environment (minutes)
VOC(2) (g/ L)
D.O.T. Label
SS4004P
SS4044P
SS4120
SS4155
SS4179
Technical Data Sheet
-
Technical Data Sheet
Technical Data Sheet
Pink
Clear/Amber
Clear/Colorless
Blue
Clear/Colorless
0.85
0.85
0.82
0.82
0.91
15
15
3
10
6
Acetone; Isopropanol; Xylene; N-butanol
Acetone; Isopropanol; Xylene; N-butanol
Ethanol; Methanol
Mineral Spirits
Ethyl Acetate; Toluene; Methanol
-12°C
(10°F)
-12°C
(10°F)
-0.5°C
(31°F)
37°C
(98°F)
-3°C
(27°F)
5 to 15
5 to 15
30
30
5 to 10
3 to 5
3 to 5
-
-
-
636
624
794
765
859
Flammable liquid
Flammable liquid
Flammable liquid
Flammable liquid
Flammable liquid

SS4004P and SS4044P
Helps promote adhesion to:  Aluminum, Copper, Steel, Stainless Steel, Brass, Galvanized metals, Porous metals, Unglazed ceramics, Wood

SS4044P is the same as SS4004P but is transparent (for applications where discoloration of the substrate is undesirable) SS4044P – FDA Compliance: 21 CFR 175.105 subject to the conditions and limitations of the regulation.


SS4120

Helps promote adhesion of addition cure RTV’s. For applications where clarity is required. FDA Compliance: 21 CFR 175.105, 21 CFR 175.300 and 21 CFR 177.2600 subject to the conditions and limitations of the regulations. SS4155 General purpose for use with any RTV SS4179 Helps promote adhesion to difficult-to-bond to plastic substrates including: Acrylics, Acrylonitrile-butadiene-styrene (ABS), Cellulosics (cellulose acetate), High-impact Styrene, Thermoplastic resins. Transparent to preserve visibility of colorless products. FDA Compliance: 21 CFR 177.2465 subject to the conditions and limitations of the regulation.

FDA STATUS
The following one-part RTV silicone rubber compounds may be used in repeated contact with foods under FDA regulation 21CFR177.2600 “Rubber Articles Intended for Repeated Use” (and, by reference, 21CFR175.300 “Resins and Polymeric Coatings”).

The Use of these Sealants is Subject to the Following Conditions: The sealant must be applied in accordance with good manufacturing practices at a thickness not to exceed 6mm (1/4”) from an exposed edge, and as a continuous film between joints acting as a functional barrier between the food and the substrate (the area underneath the joint). The sealant must be cured for a minimum of 14 days at 25°C (77°F) and 50% RH. The sealant must be thoroughly cleansed before the first use. The sealant, when properly cured, must comply with the extractives limitations at temperatures up to and including reflux applications. The user should verify compliance with extractives limitations at higher temperatures.

Compliance with 21CFR177.2600 does not authorize use of these sealants for the manufacture of baby bottle nipples. All previously mentioned sealants must be evaluated to determine bond strength for each specific application. If greater adhesion is required, the evaluation of primer
SS4044 (clear) is recommended. SS4044 may be used in repeated contact with food under 21CFR175.105 “Adhesives” and used in conjunction with the RTV products covered under 21CFR177.2600.

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MOMENTIVE
FRV1106
FRV1106 adhesive sealant is ideally suited for use in applications where resistance to the swelling effects of fuels, oils, solvents and chemicals is needed. Providing a formed-in-place gasket for pipe junctions in chemical plants, sealing seams on liquid holding tanks, Aerospace/Aircraft fuel systems and bonding sensing devices in a gas tank are typical applications. The paste consistency of these sealants allows them to be applied even on vertical and overhead surfaces in thickness up to 6 mm (1/4 in.).Key Features and Typical Benefits Resist swelling by hydrocarbon solvents, dimethyl silicone fluids and fuels. One component product, Primerless adhesion to many substrates, Room temperature cure, Non-sag paste consistency, Retain elastomeric properties at temperatures of -60 C to 204 C for long periods and to 260 C for short periods. Ozone resistant, high quality weatherability, Excellent electrical insulation properties.
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MOMENTIVE
RTV106
Key Features and Benefits: One-component products, capability to cure at room temperature and ambient humidity. Self-adhesion properties, Low temperature flexibility, High temperature performance. Excellent weatherability and ozone and chemical resistance, Excellent electrical insulation properties.
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MOMENTIVE
RTV100 SERIES
Key Features and Benefits: One-component products, capability to cure at room temperature and ambient humidity. Self-adhesion properties, Low temperature flexibility, High temperature performance. Excellent weatherability and ozone and chemical resistance, Excellent electrical insulation properties.
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MOMENTIVE
RTV11
RTV11 white 11,000 cps , RTV21 pink 26,000 cps , RTV41 white 39,000 cps: Key Features and Benefits: Work time and cure rates can be varied, Room temperature cure, Composition free of solvents and solvent odor, Potential Applications: Potting and encapsulating electrical coils and connectors, Making cast-in-place gaskets and molds, Release applications such as providing a surface on metals and fabrics from which paint and adhesives can be easily stripped. FDA compliance. RTV11 and RTV41 silicone rubber compounds can be used in food contact applications other than contact with acidic foods where FDA regulations apply. Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 204 C (400 F) continuously, and up to 260 C (500 F) for short periods of time.
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MOMENTIVE
RTV120 SERIES
Typical applications include, but are not limited to, sealing vertical joints, bonding dissimilar materials such as metal to plastic and glass to aluminium, electrical insulation of wires and terminals, and formed-inplace gasketing.
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MOMENTIVE
RTV112
Key Features and Benefits: One-component products, capability to cure at room temperature and ambient humidity. Self-adhesion properties, Low temperature flexibility, High temperature performance. Excellent weatherability and ozone and chemical resistance, Excellent electrical insulation properties.
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MOMENTIVE
RTV116
Key Features and Benefits: One-component products, capability to cure at room temperature and ambient humidity. Self-adhesion properties Low temperature flexibility High temperature performance. Excellent weatherability and ozone and chemical resistance, Excellent electrical insulation properties
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MOMENTIVE
RTV133
Key Features and Typical Benefits: One-component material. Thixotropic paste consistency, Low flammability-has a UL rating of V-0 or V-1 using UL-94 test. Capability to cure at room temperature and ambient humidity conditions, Self adhesion properties, Resistance to high temperatures, Low temperature flexibility, Operating temperature range of -60~205 C (-70~400 F), Excellent weatherability and ozone and chemical resistance, Excellent electrical insulation properties, Non-halogen flame retardants.
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MOMENTIVE
RTV128 translucent
Typical applications include, but are not limited to, sealing vertical joints, bonding dissimilar materials such as metal to plastic and glass to aluminium, electrical insulation of wires and terminals, and formed-inplace gasketing.
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MOMENTIVE
RTV122 white
Typical applications include, but are not limited to, sealing vertical joints, bonding dissimilar materials such as metal to plastic and glass to aluminium, electrical insulation of wires and terminals, and formed-inplace gasketing.
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MOMENTIVE
RTV123 black
Typical applications include, but are not limited to, sealing vertical joints, bonding dissimilar materials such as metal to plastic and glass to aluminium, electrical insulation of wires and terminals, and formed-inplace gasketing.
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MOMENTIVE
RTV142
One-component, ready-to-use adhesive sealant cures to a tough, durable, resilient silicone rubber and low outgassing.
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MOMENTIVE
RTV142C
Key Features and Benefits: One-component material, Low outgassing, Room temperature cure, Primerless adhesion to many substrates, Low odor, Non-corrosive to metals, Low volatility, Low temperature flexibility, High temperature performance, Excellent weatherability, ozone and chemical resistance
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MOMENTIVE
RTV157 (Gray)
RTV157 and RTV159 sealants are paste consistency products which can be applied to horizontal, vertical and overhead surfaces in applications requiring high strength and temperature performance.Key Features and Benefits High strength High temperature performance Low temperature flexibility One component Room temperature cure General primerless adhesion.
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MOMENTIVE
RTV162
Key Features and Benefits: Non-corrosive to electronic metals, including copper and brass Low odor cure, releasing an alcohol vapor from the sealant surface during cure UL Recognition. RTV160, RTV162 and 167 are UL recognized, Retains elastomeric properties for long periods at temperatures from -60 C (-75 F) to 205 C (400 F) and for short periods up to 260 C (500 F). One component Cure at room temperature, Excellent electrical insulation properties, Excellent resistance to moisture, dust, dirt, UV, ozone and chemicals.
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MOMENTIVE
RTV159 (Red)
RTV157 and RTV159 sealants are paste consistency products which can be applied to horizontal, vertical and overhead surfaces in applications requiring high strength and temperature performance. Key Features and Benefits: High strength, High temperature performance, Low temperature flexibility, One-component Room temperature cure, General primerless adhesion.
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MOMENTIVE
RTV21
RTV11 white 11,000 cps , RTV21 pink 26,000 cps , RTV41 white 39,000 cps: Key Features and Benefits: Work time and cure rates can be varied, Room temperature cure, Composition free of solvents and solvent odor, Potential Applications: Potting and encapsulating electrical coils and connectors, Making cast-in-place gaskets and molds, Release applications such as providing a surface on metals and fabrics from which paint and adhesives can be easily stripped. FDA compliance. RTV11 and RTV41 silicone rubber compounds can be used in food contact applications other than contact with acidic foods where FDA regulations apply. Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 204 C (400 F) continuously, and up to 260 C (500 F) for short periods of time.
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MOMENTIVE
RTV167
Key Features and Benefits: Non-corrosive to electronic metals, including copper and brass Low odor cure, releasing an alcohol vapor from the sealant surface during cure. RTV160, RTV162 and 167 are recognized by Underwriters Laboratories, Inc. under their Component Recognition Program (UL File No. E-36952). Retains elastomeric properties for long periods at temperatures from -60 C (-75 F) to 205 C (400 F) and for short periods up to 260 C (500 F). One component Cure at room temperature. Excellent electrical insulation properties. Excellent resistance to moisture, dust, dirt, UV, ozone and chemicals.
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MOMENTIVE
RTV511
Potential applications for RTV 511, RTV560 and RTV577 silicone elastomers include: cast-in-place heat shielding, Thermal insulation, Low and high-temperature bonding, Potting and encapsulation of electrical assemblies
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MOMENTIVE
RTV41
RTV11 white 11,000 cps , RTV21 pink 26,000 cps , RTV41 white 39,000 cps: Key Features and Benefits: Work time and cure rates can be varied, Room temperature cure, Composition free of solvents and solvent odor, Potential Applications: Potting and encapsulating electrical coils and connectors, Making cast-in-place gaskets and molds, Release applications such as providing a surface on metals and fabrics from which paint and adhesives can be easily stripped. FDA compliance. RTV11 and RTV41 silicone rubber compounds can be used in food contact applications other than contact with acidic foods where FDA regulations apply. Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 204 C (400 F) continuously, and up to 260 C (500 F) for short periods of time.
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MOMENTIVE
RTV31 (RED)
Key Features and Typical Benefits: Variable work times and cure rates by adjusting the amount and type of curing agent, Room temperature cure, Composition free of solvents and solvent odor, Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 260 C (500 F) continuously, and up to 316 C (600 F) for short periods of time. Potential Applications: Typical high temperature applications for these products include, but are not limited to: Potting and encapsulating electric motors and transformers, Fabrication of rubber parts, Casting molds for low-melting point metals, Release applications such as rubber rollers, Thermal insulation.
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MOMENTIVE
RTV534LV
Two-component, low outgassing, ready-to-use adhesive sealant cures to a tough, durable, resilient silicone rubber.
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MOMENTIVE
RTV560
Potential applications for RTV 511, RTV560 and RTV577 silicone elastomers include: cast-in-place heat shielding, Thermal insulation, Low and high-temperature bonding, Potting and encapsulation of electrical assemblies
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MOMENTIVE
RTV530LV
Two-component, low outgassing, ready-to-use adhesive sealant cures to a tough, durable, resilient silicone rubber.
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MOMENTIVE
RTV566
Key Features and Benefits Provides low outgassing characteristics in a high vacuum environment, Room temperature cure, Excellent release properties, Excellent adhesion capability with primer, Retains elastomeric properties from -115 C (-175 F) up to 260 C (500 F) continuously and up to 316 C (600 F) for short periods of time.
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MOMENTIVE
RTV567
Key Features and Benefits: Provides low outgassing characteristics in a high vacuum environment, Room temperature cure, Excellent release properties, Excellent adhesion capability with primer, Retains elastomeric properties from -115 C (-175 F) up to 205 C (400 F) continuously and up to 260 C (500 F) for short periods of time.
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MOMENTIVE
RTV577LV
White, low outgassing, two-component thixotropic paste with excellent release capabilities and variable work and cure times through catalyst options.
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MOMENTIVE
RTV577
Potential applications for RTV 511, RTV560 and RTV577 silicone elastomers include: cast-in-place heat shielding, Thermal insulation, Low and high-temperature bonding, Potting and encapsulation of electrical assemblies
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MOMENTIVE
RTV60 (RED)
Key Features and Typical Benefits: Variable work times and cure rates by adjusting the amount and type of curing agent, Room temperature cure, Composition free of solvents and solvent odor, Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 260 C (500 F) continuously, and up to 316 C (600 F) for short periods of time. Potential Applications: Typical high temperature applications for these products include, but are not limited to: Potting and encapsulating electric motors and transformers, Fabrication of rubber parts, Casting molds for low-melting point metals, Release applications such as rubber rollers, Thermal insulation.
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MOMENTIVE
RTV88 (RED)
Key Features and Typical Benefits: Variable work times and cure rates by adjusting the amount and type of curing agent, Room temperature cure, Composition free of solvents and solvent odor, Excellent adhesion capabilities with primer, Excellent release properties, Retention of elastomeric properties at temperatures from -54 C (-65 F) up to 260 C (500 F) continuously, and up to 316 C (600 F) for short periods of time. Potential Applications: Typical high temperature applications for these products include, but are not limited to: Potting and encapsulating electric motors and transformers, Fabrication of rubber parts, Casting molds for low-melting point metals, Release applications such as rubber rollers, Thermal insulation.
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MOMENTIVE
RTV8111
Key Features and Benefits: Conforms to the physical and electrical requirements of MIL-S-23586E, Non-corrosive to copper, Retention of elastomeric properties at high temperature up to 204 C (400 F) continuously for RTV8111 and RTV8112, up to 260 C (500 F) continuously for RTV8262. Excellent adhesion capabilities when used with primer, Room temperature cure, Composition free of solvents.
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MOMENTIVE
RTV8112
Key Features and Benefits: Conforms to the physical and electrical requirements of MIL-S-23586E, Non-corrosive to copper, Retention of elastomeric properties at high temperature up to 204 C (400 F) continuously for RTV8111 and RTV8112, up to 260 C (500 F) continuously for RTV8262. Excellent adhesion capabilities when used with primer. Room temperature cure, Composition free of solvents.
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MOMENTIVE
RTV8262
Key Features and Benefits: Conforms to the physical and electrical requirements of MIL-S-23586E, Non-corrosive to copper, Retention of elastomeric properties at high temperature up to 204 C (400 F) continuously for RTV8111, and RTV8112 up to 260 C (500 F) continuously for RTV8262. Excellent adhesion capabilities when used with primer. Room temperature cure Composition free of solvents.
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MOMENTIVE
RTV421
Two part, high strength, condensation (tin) cure mold making product. It offers mid durometer, low viscosity, and long worklife
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV430
A two part, high strength, condensation (tin) cure mold making product. It can be used with three different catalysts and therefore offers a variety of curing options to be customized for your needs
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV426
A two part, high strength, condensation cure mold making product. It can be used with three different catalysts and therefore offers a variety of curing options to be customized for your needs. Art production, Architectural and Furniture Mold Making
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV630
A two component silicone rubber mold making compound cures at room temperature to a high strength silicone rubber, Blue
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV662
A two part, addition (platinum) curing mold making product offering high durometer for applications requiring greater dimensional stability. RTV662 offers highest durometer (68 Shore A) and highest work life in the RTV600 series
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV664
A two part, addition (platinum) curing mold making product offering high durometer for applications requiring greater dimensional stability. RTV664 is a high durometer (62 Shore A), long work life product
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV668
A two part, addition (platinum) curing mold making product offering high durometer for applications requiring greater dimensional stability. RTV668 is a high durometer (62 Shore A) product formulated for sulfur resistance. It is ideal for casting with masters made of pine, oak, and elm.
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Technical Data SheetSafety Sheet
MOMENTIVE
RTV7888-20
Mold Making Compound, Mid durometer with excellent resistance to polyester. Offers a variety of curing options.
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Technical Data SheetSafety Sheet

As a AS9120B and ISO 9001 certified organization, we continue to strive to deliver the best service and experience in the industry. You, the customer, has always been are focus and we will continue to deliver the best long into the future.