Detailed PU Foam Description
One component expanding PU Foam is a multi - purpose polyurethane foam
that may be used for a wide range of building applications, draft proofing and sealing window and door
frames, such as
filling gaps around pipes, bonding wood and brick and sealing cracks and crevices. When cured it is weather and rot proof and
can be trimmed, sanded and, sawn, if necessary, painted and plastered. Adhesion
is good to most construction surfaces, brick, such as wood, concrete,
metals and many plastics.
PU foam will cure when moisture in the air reacts with the chemicals
of the foam. We occupy 60 - 70% of the domestic
market and are one of the largest suppliers in Asia. All one - component foams meet GB8624 - 97 flame resistance
requirements for caulks and sealants.
Guide for use:
It can be applied to damp surfaces. The more
moisture, the quicker the cure. OCF is moisture curing. It must be protected from Uvin external
application to prevent discoloration and deterioration of the foam. In overhead applications,
foam must be retained in place to prevent its falling away until adhesion
grips.
Conventional paints can be applied to the foam. It can be used in temperature range of 5 - 40oC, if in
low temperature condition, we suggest that it should be placed in
25 - 30oC circumstance for 30 minutes to ensure the better
performance. But after cure,
foam can only be removed mechanically (sanded or scraped ). Uncured foam can be removed with solvent. Uncured
foam sticks to hands and clothing.
Specifications:
a) Storage life: 12 months when stored at 20o
b) 12 or 15 cans / carton
c) Density: 14 to 30kg / m3
d) Adhesive strength: PVC - PVC: 143kPa
e) Aluminum plates: 133kPa
f) Elongation at break: 8à20%
g) Shear strength: 22à50kPa
h) Compression strength 35à 100kPa at 10% compression
i) Water absorption:0.03% volume
j) Thermo conductivity: 0.028 - 0.038W / (m. 11)
k) Tack free time: 12mins at 23oC / 50%RH
l) Yield per 100 ml: 3.25L
m) Closed cells: 60 - 70%
n) Storage life: 12 mouths when stored at 20oC
o) Yield per 100 ml: 3.25 litres
p) Closed cells: 60 - 70%
We are committed to doing our best for you, and welcome inquiries for PU Foam.
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