high security bolt seals

high security bolt seals
high security bolt seals

2013年6月17日星期一

What is performance polyurethane seals


Reason why the development of polyurethane seal quick demand, because it has excellent performance. Polyurethane seal features are:security tie
(1) excellent wear resistance; mechanical strength, resistance to biological aging
(2) Low temperature flexibility; at very low temperatures, generally Other materials are hard brittle seals, the polyurethane seal even at - 250 ℃ less able to maintain its performance.
(3) Adjustable wide range of performance, flexibility, and has excellent resilience
(4) tack, good adhesion; Because the molecular chain of the polyurethane - NCO and a variety of active hydrogen-containing functional group, to form chemical bonding interface. Thus, a variety of materials with strong adhesive properties.
(5) oil resistance
(6) affordable
(7) weather is good, the service life can be up to 15-20 years;vehicle seals

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