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Silicones

When you need high-performance silicones, turn to GracoRoberts. We carry aerospace silicones across RTV rubber compounds, adhesive sealants, primers, resins, fillers, catalysts, adhesives, and specialty coatings. These materials are selected for thermal stability, insulation, and resistance to environmental stress in sealing, bonding, potting, and encapsulation work.

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GracoRoberts P/N: 
105288-301
MFR PN: 
Kitted ...
Kitted Product
$6,097.59
Estimated lead time 15 business days
Known to cause cancer
Known to cause cancer
Classed as hazardous for shipping
Classed as hazardous for shipping
GracoRoberts P/N: 
115267-100
MFR PN: 
28158
$2,959.35
Estimated lead time 65 business days
Known to cause reproductive harm
Known to cause reproductive harm
Classed as hazardous for shipping
Classed as hazardous for shipping
GracoRoberts P/N: 
V01344
MFR PN: 
148825 ...
148825 | 154733
From $1,092.32
Estimated lead time 55 business days
GracoRoberts P/N: 
115324-100
MFR PN: 
9267
$2,321.94
Estimated lead time 105 business days
Known to cause cancer and reproductive harm
Known to cause cancer and reproductive harm
Classed as hazardous for shipping
Classed as hazardous for shipping
GracoRoberts P/N: 
100869-100
MFR PN: 
8498
$489.53
Estimated lead time 55 business days
Classed as hazardous for shipping
Classed as hazardous for shipping
GracoRoberts P/N: 
100868-100
MFR PN: 
8694
$81.82
In Stock - 3 Available
Classed as hazardous for shipping
Classed as hazardous for shipping
GracoRoberts P/N: 
V00420
MFR PN: 
9497 ...
9497 | 9498 | 9499 | 9500
From $150.87
In Stock
GracoRoberts P/N: 
V00429
MFR PN: 
100788-300 ...
100788-300 | 100788-301 | 100788-302
From $55.80
Estimated lead time 21 business days
GracoRoberts P/N: 
V00413
MFR PN: 
122356 ...
122356 | 9452
From $225.77
In Stock
GracoRoberts P/N: 
V00404
MFR PN: 
9367 ...
9367 | 9368 | 9369
From $44.85
In Stock
GracoRoberts P/N: 
V00407
MFR PN: 
9379 ...
9379 | 9380
From $82.81
Estimated lead time 55 business days
GracoRoberts P/N: 
V01234
MFR PN: 
28092 ...
28092 | 37952
From $36.44
Estimated lead time 105 business days
GracoRoberts P/N: 
V00419
MFR PN: 
9493 ...
9493 | 9495 | 9496
From $228.08
Estimated lead time 55 business days
GracoRoberts P/N: 
100888-100
MFR PN: 
37995
$28.71
Estimated lead time 55 business days
GracoRoberts P/N: 
100881-100
MFR PN: 
9374
$156.52
Estimated lead time 55 business days

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How to Choose the Right Silicone Product

Start with the family that matches the application. Silicone rubber compounds work well for molding, sealing, potting, and encapsulation. Adhesive sealants, silicone resins, catalysts, and silicone fillers support surface prep, cure performance, and finishing needs.

High-Performance RTV Silicones

At GracoRoberts, you'll find a great selection of high-performance RTV silicones, including Momentive RTV630 Blue Silicone Rubber Compound, a two-part silicone rubber that offers excellent mechanical strength and flexibility. Use RTV630 for jobs like molding and encapsulation, where high-temperature resistance and environmental durability matter in aerospace applications.

For high-temperature sealing and potting, Momentive Siltrust RTV577 White Silicone Rubber Compound is a great choice. This high-strength silicone delivers outstanding durability and adhesion to a variety of surfaces. When you need reliable protection, RTV 577 is the way to go and ensures long-lasting performance.

Silicones for Critical Applications

For mission-critical applications, you need a silicone that you can count on. Fortunately, GracoRoberts has plenty of those to choose from, including Momentive Siltrust RTV560 Red Silicone Rubber Compound. This vibrantly colored, high-performance silicone offers superior resistance to thermal and mechanical stress. RTV560 is widely used in aerospace applications where high-temperature resistance and flexibility are essential.

Top Brands

We proudly carry leading brands like Momentive, DOWSIL, NuSil, DuPont, Flamemaster, Henkel, Parker Hannifin, CHT, and Royal Adhesives & Sealants. These silicones are known for reliability, strength, versatility, adhesion, electrical insulation, and performance in extreme conditions.

From RTV630 to RTV 577 and RTV 560, GracoRoberts offers industry-leading solutions for every need. Our top-quality silicone products are tailored to the aerospace industry, meeting all performance requirements. Ready to get started? Browse our selection today for the best selection of high-performance silicones.

Frequently Asked Questions About Aviation-Grade Silicones

What is the difference between RTV silicone and aerospace-grade silicone?

Aerospace-grade silicone describes the intended aircraft use and documentation level, while RTV describes the curing chemistry. A product can be both aerospace-grade and RTV silicone.

Do aerospace silicone sealants need a primer for aluminum or composite substrates?

Often they do, depending on the product and substrate. Check the individual product page and matching primer guidance before use.

Are these silicones qualified to aerospace or military specifications?

Some products may meet aerospace or military requirements, but exact approvals vary by item. Review the individual product page and supporting documentation before qualification.