BONDiT™ B-46

B-46 handles harsh environments and is particularly effective against moisture, salt water, acids, alkalies, oils, gasoline and detergents. B-46 offers good corrosion resistance. The highly flexible and elastic properties of 400% elongation permits assembly of materials with very dissimilar thermal expansion properties which will survive thermal cycling. Likewise mechanical vibration, shock and impact are easily absorbed by B-46.
A substantial advantage of B-46 is its capability of excellent peel strength to unprepped dissimilar materials and difficult to bond substrates, including Teflon, and polyethylene
and polypropylene films. Its very high tack at the bond interface allow adhesion to very low surface energy substrates. An interesting example is to bond polyethylene film to
concrete flooring as a vapor barrier and then bond the flooring subpannels to the polyethylene film, thereby forming a completely moisture free flooring.
This product works very well as a re-enterable sealant for cable and transducer terminations that withstands years of submersion in deep-sea and other harsh chemical
environments. Likewise, assemblies are re-enterable: after dissasembly the tacky surface of the adhesive will endure and allow reassembly without further preparation, just like
a PSA.
Operational temperatures are from -65°C to 135°C, above which it will soften considerably, but not flow as it is a crosslinked epoxy system. B-46 is very easy to use with low
HAZMAT impact as a 100% solids epoxy system—no plasticizers that bloom to the surface and no solvents causing VOC problems. The product is also availble in a
thixotropic silcate filled version B-46TH which can be applied to vertical surfaces without sagging, or in paste or electrically conductive form

A wide range of curing regimes may be employed: ambient set in 8 hours, tack free in 24 hours, and 95% cure in 3 days; will cure 98% in 4 hours at 200°F.
B-46CAT version is catalized to set (gel) in 10 minutes at 185 degrees F. Mix part A with part B, 1:1 ratio by volume or weight. Degassing is optional. Pot life is typically 90 minutes, at ambient temperature. Optional: Surface prep by abrading or grit blasting substrates with #100 AlOx followed by degrease and/or alcohol wipe will increase adhesion. Apply B-46 by roller or brush.

Superior chemical resistance for moisture and oil, acids and bases in continuous full submersion. High thermal stability in a rugged, highly flexible system used as an adhesive and re-enterable sealant

Two-part, primerless, highly flexible epoxy, ambient and thermal cure. Low HAZMAT impact. Excellent sealant for electronic and electrical encapsulation for harsh environments.

Marine,Civil Engineering, Industrial, Downhole oil, Underwater, Mining, Industrial,, Automotive.