White brushing gel coat is a basic for hand
laminating fabricating, and will remain tacky between coats allowing
recoating if required. Use for repair work and interior
coating. Isophthalic grade is the upper grade of resins which
means the product in waterproof and is suitable to use below the
water line. It has limited chemical resistance but is suitable for
mild acids. For best practice, itís best to test the chemical
for any adverse effects.
Other applications include water tanks, potable water tanks, waste
tanks, grey water tanks. Brushing get sands very well and blends in
with existing gel coat surfaces.
If youíre tinting this product it only contains white with no other
color added, so itís considered pure white. Remember you can't
make a solid color from white as it will always be a pastel shade.
Use Rayplex Pigments only.
They are made specifically for gel coats and should be used when
tinting or coloring polyester gel coat. Any chemical foreign to the
polyester can interrupt the curing process and damage properties.
No more than 1 ounce of color agent should be added to a
quart of white gel coat.
For part fabrication this white brushing gel
coat can be brushed onto a mould with good coverage usually with one
coat. The gel coat covers well, but sharp corners may require
and extra coat for proper coverage.
For interior coverage add 5% of wax solution.
Wax solution floats to the surface and prevents oxidation which
gives gel that sticky feel when cured. This will give a tack
free non sticky surface. If more gel coat must be
applied, the surface will have to be well sanded and the wax coating
removed with solvents.
1) Don't over catalyze as this will prevent the gel coat form
Gel coat is still tacky (a finger leaves a fingerprint) after
hardener has been mixed into the resin and proper cure time has
Never exceed 3% catalyst by volume or below 1.2%. We
reconmend not using this product below 60F. See the
Catalyst mixing guide in the How To section of
www.fibreglass.com. Always mix in clean
containers, used coffee cups can impart a yellow cast to gel coat.
2) It is recommended that gel time be checked in the
customer's plant because age, temperature, humidity and catalyst
will produce varied gel times.
3) Never thin with or add
acetone as this will inhibit the gel coat from curing properly and
will be soft. Use streyne to thin with.
Prior to full cure, gel coat can be removed
with acetone. Be sure to put all tools into an acetone bath before
the gel coat has time to harden.
Information present herein has been compiled
from sources considered to be dependable and is accurate and
reliable to the best of our knowledge and
belief but is not guaranteed to be so. Nothing herein is to be
recommending any practice or any product
violation of any patent or in violation of any law or regulation. It
userís responsibility to determine for
himself the suitability of any material for a specific purpose and
to adopt such
safety precautions as may be necessary. We
make no warranty as to the results to be obtained in using any
and, since conditions of use are not under
our control, we must necessarily disclaim all liability with respect
use of any material supplied by us.