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L.H. Dottie HF340 is a moisture-cure polyurethane foam sealant in a twelve-ounce pressurized can. This expanding sealant is formulated for various applications including electrical, plumbing, air conditioning, and refrigeration. It can seal, bond, and insulate while also reducing sound transmission. The foam expands two to three times its original volume and carries an R-value of five per inch of foam.
Ideal for sealing cracks and gaps. Requires a clean and firm substrate for optimal adhesion.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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