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Hylomar Sealants & Adhesives

Genuine Hylomar sealant is perfect for sealing gearbox covers or any other parts that need to be disassembled easily and without a lot of scraping to clean up the residue. Seals gaps up to .010 inch. Since it never hardens, it allows much longer working times during assembly and it makes disassembly a snap. Simply wipe parts clean with acetone or tolulene. By contrast, RTV must be thoroughly scraped off the sealing surfaces. A hardened piece of RTV residue left between mating surfaces can actually cause dents in cast aluminum! Hylomar sealant is not recommended for long-term assembly, or where parts are subjected to flexing (such as transaxle side covers). We recommend RTV for those applications.

(HAO) = Hazardous, Air only. These items are considered Hazardous by UPS when shipped by air (3 Day Select, 2nd Day Air, or Next Day Air). A hazardous shipping charge of $42.50 will apply if shipped by air. The estimated shipping cost shown on the Shopping Cart page already includes this charge if applicable.

Part No.
(HAO) Hylomar Sealant, 100g (3 oz) Tube, medium consistency


(HAO) Hylomar Sealant, 100g (3 oz) Tube, medium consistency

$21.49In Stock
(HAO) Hylomar Solvent Free Gasket Maker, 8oz Brush-Top Can


(HAO) Hylomar Solvent Free Gasket Maker, 8oz Brush-Top Can

$48.99In Stock
HV-350 Flexible Adhesive


HV-350 Flexible Adhesive

$7.99In Stock
Tube Grip Dispensing Pliers


Tube Grip Dispensing Pliers

$17.49In Stock