Documents in our library describe Vapo-Sure 320 and 321 (Insul-Coustic) as “fibrated mastic”.1 It was rated for temperatures up to 300 °F.1
You don't need the product names or old records. No fee unless we recover compensation for your family.
What each document says
Every statement about Vapo-Sure 320 and 321 (Insul-Coustic) in the documents, in each document's own words.
Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (1962)
- Form: “Fibrated Mastic”, p. 1341
- Asbestos content: “Special asphalts, asbestos fibers, inert fillers and mineral spirit solvents.”, p. 1341
- Temperature limit: “-40 to 300”, p. 1341
- Description: “ASPHALT CUTBACK (Fibrated Mastic)”, p. 1341
See also
- Insul-Coustic: the company's history, documents, people, products and plants
References
- Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 134.
Cite this page
“Vapo-Sure 320 and 321 (Insul-Coustic).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/insul-coustic-vapo-sure-320-and-321.
ACL Doc numbers and their short links never change. See how to cite the Library.
Talk with an asbestos lawyer
Start with what you remember, and we'll take it from there.
This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.