Sealants

SCM3404-NASA Grey Solventless Flowable Sealant

SKU: SCM3404-NASA

Brand: Momentive

Pricing on request

Specifications

Part Number	SCM3404-NASA
Material	Silicone (1P Condensation cure)

Description

SCM3404-NASA is a grey, solventless one-component silicone that cures with atmospheric moisture to a firm, mid-modulus elastomer. Being solventless, it applies at full solids with no solvent flash-off and no shrinkage from evaporating carrier, which is why it is associated with launch pad coating and sealing work on exposed structures. The flowable consistency suits horizontal surfaces, seams and joints that need a continuous weather-facing silicone layer.

Property values are the manufacturer's published datasheet figures for this grade. Confirm against the current Momentive datasheet for your application.

Angad Aviation supplies this material for purchase. Request a quote for pack sizes, current price and lead time. Documentation is available on request.

Manufacturer: Momentive
Part No.: SCM3404-NASA
Cure type: 1P Condensation
Work life: 2 hr
Tensile strength: 320 psi
Tear strength (Die B): 15 lb/in
Elongation: 245 %
Hardness: 50 Shore A
Catalyst options: not applicable
Notable property: Launch pad coating

Frequently asked

What does 'solventless' change in practice for this sealant?

There is no carrier to evaporate, so the applied film is effectively the finished film — thickness does not drop as it dries and there is no solvent ventilation or flash-off step to schedule. It also avoids solvent attack on underlying coatings, though the substrate still needs to be clean, dry and sound for adhesion.

Is SCM3404-NASA suitable for thick, enclosed sections?

No — it is a one-part condensation grade that cures inward from the air-exposed surface, so it is intended for coatings, seams and flowable fills with an open face. For deep pots or joints closed off from atmospheric moisture, select a two-part system instead.

How do I get pricing, pack sizes and lead time?

Angad Aviation supplies this product quote-first. Request a quote with the grade and quantity you need and our team confirms available pack sizes, current price and lead time.