Energy savings plus mechanical reinforcement and rheology control

Solvent-based Gun Grade Oil-Polybutene Caulking Compound

Adhesives Formulation

Applicable Type

Solvent borne Adhesives

Applicable Industrial Sectors

Buildings & constructions

Applicable Base Polymer Properties

Isobutene rubber is an elastomeric polymer that is used in a wide variety of construction sealants. Because of its unique properties it also is used in the automotive and food processing industries among others. Sealants can be applied in a number of different forms. It is used widely as a hot melt, solvent solution, preformed tape or gasket, and as a gun-dispensable sealant (this formulation).

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Blown soybean oil, Z-4 Garner-Holdt viscosity (Cargil, Inc.)

Isobutene polymer (Indopol H-1900, Amoco Chemicals Corp.)

xxx

Soya fatty acids

Atomite calcium carbonate

xxx

Thixotrope (Thixcin R, NL Industries, Inc.)

Mineral spirits

xxx

Typical Properties

Properties

Non-volatile content, %

xxxx

Pigment volume concentration, %

Weight / gallon, lbs

xxxxx

Processing

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Resulting Properties

Isobutene sealants are known for excellent adhesion to most substrates and good water resistance. However, they can stain adjacent surfaces and have relatively poor recovery from extension. The polymeric compositions along with the other additives will affect both the application and the ultimate performance properties of the joint.

This formulation of Solvent-based Gun Grade Oil-Polybutene Caulking Compound has the following characteristics:

Non-skinning
Excellent gun consistency
Thixotropic stable viscosity
Good sag and slump control
Excellent pigment suspension
Excellent durability and water resistance
Good package stability and adhesion
Remains permanently tacky

Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, p. 378.)