Documents in our library describe Calsilite (Ruberoid) as “block and pipe covering”.1 It was rated for temperatures up to 1250 °F.1 Where the documents differ, each is listed below with its source.
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 Calsilite (Ruberoid) in the documents, in each document's own words.
Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (1962)
- Form: “Block and Pipe Covering”, p. 781
- Asbestos content: “Hydrous calcium silicate reinforced with a small amount of asbestos fibers”, p. 781
- Description: “Hydrous calcium silicate reinforced with a small amount of asbestos fibers. Good compressive strength. Rigid.”, p. 781
- Temperature limit: “Atmos to 1250”, p. 781
Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two
- Description: “Calsilite (listed, product not given)” (as of 1953), p. 642
Kind of product
We list Calsilite (Ruberoid) with pipe covering and block insulation, from how the documents describe its form. That page explains how such products exposed workers.
Trades that worked with products like it: Insulators and Insulation Workers, Pipefitters and Plumbers.
Other pipe covering and block insulation by Ruberoid (5)
Pipe covering and block insulation by other makers (271)
Thermobestos · Superex (Johns-Manville) · Careytemp (Philip Carey) · Kaylo (Owens-Corning) · Unibestos (Union Asbestos & Rubber Co.) · Atlasite (Atlas Asbestos) · Best Felt (Armstrong Cork) · Best Felt (Keasbey & Mattison) · Bestfelt (Nicolet) · Cal Temp (Pabco Products) · Calcium Silicate (Unarco) · Calsilite (GAF) · Calsilite Insulation Cement (GAF) · Calsilite-Hi (GAF) · Caltemp (Fibreboard) · Caltemp Cement (Fibreboard) · Caltherm (Fibreboard) · Caposil 1400 (Cape Asbestos) · Caposite (Holmes Foundry) · Caposite Plus (Cape Insulation) · and 251 more: all pipe covering and block insulation
See also
- Ruberoid: the company's history, documents, people, products and plants
- Ruberoid on our products page: what the documents say about the company's asbestos products, with sources
References
- Union Carbide Chemicals Company: Thermal Insulation and Accessories Manual (October 1, 1962), p. 78.
- Sourcebook on Asbestos Diseases: Medical, Legal, and Engineering Aspects, Volume Two (1986), p. 64. Not yet published in our library.
Mentioned on this site
Cite this page
“Calsilite (Ruberoid).” AsbestosClaims.Law Library. https://asbestosclaims.law/library/products/ruberoid-calsilite.
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.