Oil based caulks

Polybutenes have heen used for almost a century and while they are still used, most of this type sealant contains butyl rubber, which is a copolymer of butene and isoprene. Most building specifications, including Federal Specification, TT-S-001637, require solutions of butyl rubber instead of oil-based caulking compositions. Self curing butyl rubber sealants may contain phenolic resins,IS. resorcinol and hexamethylenetetramine. ... 

High quality, conventional sealants (118) will dominate the industries in the 80 s. Energy-efficient, water-proof, and durable sealants will be in demand by the construction and automotive industries. Commonly used sealants are polysulfides, polyurethanes, silicones, oil-based caulks, butyls, and solvent or latex acrylics. However, judged by their performances and durability (Table 3), the first three will be the most important sealants for this decade. 

These materials, also called oil-based caulking compounds, contain 15-20% blown or heatbodied vegetable oil, usually soya, plus 5-8% fatty acids and polybutenes. Since these latter polymers do not harden on aging, they prevent embrittlement of the compound. Pigmentation is usually high in calcium carbonate, with fibrous talc or other fibrous filler to provide nonslump characteristics. Solvents up to 3-4% are often added to improve working. Oil-based... 

Oil based caulking compounds are supplied in knife and gun grades. Gun grades are viscous semiliquids whereas knife grades are more viscous and are similar to mortar in consistency. A simple linseed oil putty has a composition of 12 parts oil and 88 parts calcium carbonate filler. The sealants can be appUed at temperatures between 40 to 100°F (4 to 38°C). Below 40°F, the viscosity becomes too high for easy working, and above 100°F, the viscosity drops sufficiently for sagging to occur. 

Harlan, J.T. and Petershagen, L.A., 1977, "Thermoplastic Rubber in Adhesives", Handbook of Adhesives, 2nd ed., I. Skeist(ed.), Van Nostrand Reinhold, New York, pp 304-330. Kilchesty, A.A., 1986, "Oleo Resinous and Oil-Base Caulking Compounds", Caulks and Sealants Short Course, Adhesive md Sealant Council, Washington, E)C, Dec.,pp 13-23. Kilchesty, A.A., 1986A, "Solvent Aeryhcs", ibid, pp 77-84. 

Kilchesty, AA., 1986, "Oleo Resinous and Oil-Base Caulking Compounds", ibid, pp 13-23. Newton, M.V. et al, 1986, "Butyl Sealants Formulating, Developing, Processing", ibid, pp 25-75. 

Interior Hatten Polyurethane, oil-based caulking compound... 

Riser pipe on floor Oil-based caulking compound, siiicone... 

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