-
Composition and Properties
-
GEMREZ LR 2:1 is a sealer
& laminating resin for fibreglass, timber, concrete, and other materials
-
It is particularly suited
to manufacture of surfboards due to its outstanding clarity and UV
resistance. In addition to laminating it can be used as an adhesive, and
a clear finish coat.
-
When filled with Qcels,
microballoons, or similar it can be used as a sandable filling coat.
-
It has excellent impact
resistance and flexibility.
-
GEMREZ LR 2:1 has low
odour and pleasant handling characteristics.
-
It can be tinted with the
correct tinters & dyes - contact GemCo Ltd.
-
GEMREZ LR 2:1 is suitable
for use in
the construction, timber, electrical, & marine industries.
-
Physical properties
-
Appearance: Base - low
viscosity clear liquid Hardener - low viscosity clear liquid
-
Odour: low odour
-
Coating Type: Epoxy
-
Packaging: 3, 30 litre
,two part pack (also available in 200L drums)
-
Mix ratio: 2:1(base :
hardener)
-
Pot Life: Approximately
15 min @ 20 °Celsius (150g mix)
-
Coverage: 5-10 sq
metres/litre typical @ 200 microns
-
Dry to Recoat: Typically
4-8 hours - will vary according to temperature & humidity
-
Surface Preparation
-
All contaminants must be
removed from surfaces to be laminated.
-
A test patch is
recommended if the product has not been used before.
-
Sanding between coats is
recommended
-
Method of Application
-
Surfboards typically require 1.5 - 3 litres of resin depending on size
-
For
best results store , apply, & cure resin at temperature of 25 ° C.
-
Add 1
part hardener to 2 parts base (by volume) and thoroughly hand mix .
-
Hand
mix small quantities with a stick taking care to scrape sides & bottom
of container then allow to sit for a few minutes for air to come out -
watch pot life.
-
In
cooler weather pre-heat containers in hot water or similar.
-
Apply
by brush, roller, or squeegee when laminating.
-
Mixing small quantities is recommended in hot climates.
-
Apply
by brush, roller, or squeegee when laminating.
-
Recoat within 24 hours - sanding between coats is recommended.
-
When
filled with Qcels, microballoons , or similar GEMREZ LR 2:1 can be used
as a sandable filling coat.
-
Fumed
silica e.g. Aerosil 200 can be used to thicken GEMREZ LR 2:1 for use as
an adhesive.
-
Cutting & Polishing - wet sand with 600 then 1200 grit paper until a
uniformly flat finish is achieved. Buff using a 3M sheepskin buffing pad
& 3M Perfect-It III 5936 cutting compound (or equivalent) until level of
gloss required is achieved. A coat of 3M Perfect-It III polish (or
equivalent) can be applied to give a very high gloss finish.
-
Handling Precautions
-
Avoid contact with eyes
and skin.
-
Do not ingest.
-
Use with adequate
ventilation.
-
Protective clothing ,eye
protection, and gloves should be worn.
-
Do not breathe vapor or
spray.
-
Keep away from children.
1/4/09
The information provided is accurate to the
best of our knowledge. We can not however anticipate all conditions under
which this information and our products may be used. We therefore accept
no responsibility for results obtained by the application of our products,
or for their safe use and suitability. GemCo Limited sells these products
without warranty and buyers and users assume all responsibility and
liability for loss or damage arising from the handling and use of our
products.
|
