|
Roofing asphalts
FRIPP has begun to
develop premium quality roofing asphalt and waterproof
materials since the end of 1980s. The catalytic
oxidation process developed by FRIPP can extend the
elasticity range of asphalt and greatly improve the
performances of asphalt under high/low temperatures.
This technology has been applied in Fushun Asphalt Felt
Factory with the products meeting ASTM D312 and ASTM
D449.
On the basis of the development of roofing
asphalt, FRIPP carried out studies on medium and top
grades of waterproof materials.
Through improving the
special process and enhancing good mixture of polymer
and asphalt, the medium grade waterproof product has
heat resistance over 90℃ and
flexibility lower than -2℃, free
from the problem of “heat flowing and cold cracking”
which is common among ordinary roofing asphalts; the top
grade waterproof product has its elasticity range
greatly broadened with its heat resistance over 90℃ and flexibility lower than -25℃. Both products meet the UNE104-281
of Spain.
|
