HPP 89

               HEAT SINK
MATERIAL FOR INSULATING AND POSITIONING PARTS FOR BRAZING
GENERAL CHARACTERISTICS
An easy to mold compound that is used as a heat dam and insulator to protect metal and other materials from the effects of heat.  The dough-like consistency of HPP89 makes it easy to mold around intricate parts.  It will adhere to most surfaces making it ideal for use as a jigging fixture or insulator for parts to be welded.   HPP89 will not distort or shrink when heated.

TYPICAL APPLICATIONS:  Can be used as a heat sink to absorb heat and avoid surface discoloration on heat sensitive parts.  It can be used as a heat dam to prevent heat from traveling to areas that can be damaged by heat, such as valves, other fittings, O-rings, packing glands, glass, and paint.  HPP89 is ideal to hold or position difficult to align parts.  HPP89 will keep distortion down when welding on light gauge metals such as stainless steel.

Technical Data:
-Asbestos free  Does not contain any toxic elements.-Can be reused.
-Maintains shape when heated.         -Can be reconstituted using water.
-Withstand temperature to 3000 degrees F.

Procedure:
Position each of the parts to be joined in a mound of HPP89 large enough to support its weight.  Adjust the alignment as necessary before welding.  For parts that need to be protected from heat, cover the area with a layer of HPP89.  For high temperature applications or where heat is applied for a prolonged time, use a thicker coating.  HPP89 can also be used to protect non-metallic parts along side the welding area.  If moisture would be harmful to the protected area, a piece of plastic wrap should be applied first.