Momentive PSA 529 / SRC-18 (Two-Part Kit), Professional-Grade 2-Part Silicone System for Permanent Gasket and Metal Bonding.
Momentive SilGrip PSA529 silicone pressure sensitive adhesive is a toluene solution of polysiloxane gum and resin. It is supplied at 55 percent silicone solids and may be further diluted with aromatic, aliphatic or chlorinated solvents. It should be cured with the supplied SilGrip SRC18.
| Category | Adhesive | Brand | Momentive |
| Part No. | PSA 529/ SRC 18 | OEM Part No. | Not Avaliable |
| Alt Part No. | Not Available | Country of Origin | Not Available |
| Pro Category | Not Available | Is Return | Yes |
| Condition | Self Life | ||
| Pack Size | |||
The PSA 529 / SRC-18 Kit is a specialized two-part silicone contact adhesive system engineered for high-strength assembly. By incorporating the SRC-18 catalyst, this system enables a room-temperature cure, which is essential for bonding silicone elastomers to rigid substrates like stainless steel and aluminum. This kit is the standard choice in aerospace MRO for permanent gasket assembly where heat-curing is not feasible.
Features:
- Wide temperature range performance, maintains good shear and tack properties at intermittent temperatures up to 500°F
- Adhesion to a wide variety of surfaces (stainless steel, anodized aluminum, steel) including low energy surfaces (silicones, fluoropolymers, polyolefines)
- Resistance to moisture, weathering (ozone, sunlight), chemical (acids, alkalis, oils) and biological (fungus) attack
- Creep resistance
Application
- Direct Assembly: Permanent bonding of silicone rubber gaskets to aerospace airframes.
- Dissimilar Materials: Fastening silicone to anodized aluminum and cold-rolled steel.
Disclaimer: Product information is subject to change based on manufacturer updates.
PSA 529/ SRC 18
- Kit Contents: 500g Resin + 16g Catalyst
- Cure Type: Room Temperature (3-7 days for full strength)
- Peel Strength: 4-6 lbs/inch
- NSN: 8040-00-097-6524
- Kit Weight: 516gm Total (500g Adhesive + 16g Catalyst).
- Hazard Class: Mixed Shipment—Class 3 Flammable (Resin) and Class 8 Corrosive (Catalyst).
- Packaging: Shipped as a coordinated kit with individual component safety seals.
- Logistics Note: Regulated for air transport; requires specialized Hazmat documentation.
- Part Number: PSA-529-SRC-18.
- National Stock Number (NSN): 8040-00-097-6524.
- Military Standard: Qualified for MIL A-25475B bond strength requirements.
- Components: Includes Momentive SilGrip* PSA 529 and SRC-18 Amino Silane Catalyst.
