We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White 2.8 oz squeeze tube of silicone sealant

ASI

ASI ASI502RTV2.8White adhesive 2.8 oz White

SKU CH-51K9-8J96K MPN ASI502RTV2.8White

Food-grade 100% RTV silicone seals and bonds non-porous surfaces with lasting flexibility

  • Product typeGlue
  • Key featuresUniversal
  • Product colorWhite
  • Size details2.8 oz

Color White

Sizes/Dimensions 2.8 oz

  • Non-slump formula allows vertical or overhead application without sagging
  • Moisture-curing RTV silicone cures to durable, flexible rubber for long-term seals
  • Food-grade compliance under FDA regulation 175.105 permits incidental food contact
  • Withstands constant temperatures from -70 to +400 degrees F after curing
  • Adheres to glass, metal, porcelain, ceramic, wood and most plastics when cured

Food-Grade RTV Silicone Sealant

ASI 502 is a one-part, moisture-curing RTV silicone supplied in a 2.8 oz squeeze tube. It cures at room temperature to a durable, flexible rubber that resists weathering, ozone and UV exposure. The formulation meets FDA Regulation 175.105 for incidental food contact.

For General Sealing and Bonding Tasks

Suitable for users who need a non-slump sealant on vertical or overhead surfaces such as glass, metal, ceramic, wood and most plastics. Operates on surfaces from -18°C to +50°C and withstands -70°F to +400°F once cured. Not for buyers who require a structural adhesive for load-bearing joints or a product certified for potable water systems.

Check Surface Compatibility and Cure Conditions

Verify that the substrates are non-porous and clean for proper adhesion. Confirm the application temperature falls within the stated range and that the joint design allows moisture access for curing. Ensure the white colour matches the aesthetic requirements of the finished assembly.

How it compares

Measured against everything we stock in Glues & Bonding Adhesives, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 90% of the 452 comparable items (median $13.99).

Specifications

Product
Brand nameASI
Model nameASI502RTV2.8White
Product typeGlue
Product colorWhite
Size & build
Size details2.8 oz

Other versions of this model

2 more in the same range

Questions about this item

What surfaces should I already have clean and ready before applying the 2.8 oz tube of ASI 502 White RTV silicone?

Prepare glass, metal, porcelain, ceramic, wood, most plastics or other non-porous substrates; the sealant bonds to these materials once fully cured.

Can I use this 100 % RTV silicone alongside existing cured silicone beads in the same joint?

Fresh ASI 502 will not fuse chemically to old cured silicone; remove the old bead completely and clean the joint before applying the new sealant.

How do I confirm the 2.8 oz White ASI 502 has cured properly after installation?

The material turns into a tough, flexible rubber that resists ozone, UV, freeze-thaw cycles and airborne chemicals while staying bonded from -70 °F to +400 °F.

More in Glues & Bonding Adhesives

Similar items