Bufa VE Tooling Gelcoat Grey H-520-2113 (22.9kg)
BUFA-VE-Tooling-Gelcoat-H is an unpigmented gelcoat in a brushing
consistency. It is pre-accelerated and based on epoxy-bisphenol A-vinyl
ester-urethane resin dissolved in styrene.
BUFA-VE-Tooling-Gelcoat-H was especially developed for the
production of GRP moulds. The product is particularly suitable for moulds
that are subjected to high chemical and thermal loads.
Specifications /technical data
Property Test method Value Unit
Density at 20°C DIN 53 217/2 1,1 g/ml
Viscosity at 20°C
Spl 4. 2 rpm .
ISO 2555 50000-56000 mPas
Styrene content 39-42 %
Flash point DIN 51 758 +32 °C
BUFA method in accordance with DIN 16 945 18.104.22.168
(100 g resin + 2% by weight Butanox M-50)
20 – 30 °C 12 – 16 min
20 °C – Tmax 25 – 30 min
Tmax 175 – 195 °C
Gel time at 20°C in a 100 g cup
with 2.0 g Butanox M-50: 12 – 16 min
The information given above refers exclusively to the use of the catalyst
named and the quantity specified. The use of different products or
differing quantities may yield different results.
Along with the unpigmented formulation described here, the following
tinted versions are available.
Product No. 520-2107 BUFA-VE-Tooling-Gelcoat-H black
Product No. 520-2109 BUFA-VE-Tooling-Gelcoat-H light green
Product No. 520-2111 BUFA-VE-Tooling-Gelcoat-H orange
Product No. 520-2113 BUFA-VE-Tooling-Gelcoat-H grey
Since the ability to pigment this class of resin is limited, it is essential that
only the pigmentations we offer are used. You should never tint with
untested pigments on your own.
Directions for use
BUFA-VE-Tooling-Gelcoat-H comes pre-accelerated and ready to use.
The gelcoat can be cured with standard MEK peroxides without having to
worry about the formation of foam typical for normal vinyl ester resins.
The first layer of gelcoat is applied by brush or roller in a layer 400-500
μm thick. After the layer has cured, a second layer 300-400 μm thick is
applied to even thinner areas and ensure uniform thickness.
Notes on release agents
Before the release agent is applied, make sure that the surface finish of
the model is completely cured. For release, we recommend the
application of 6-7 layers of BF 700 Carnauba Wax. Each layer of wax that
is applied should dry for at least an hour before the next layer is applied.
The completely treated model should be stored best overnight before
mould-making is begun. To ensure reliable release, the release wax
should be tested on a separate sheet first.
This product must be stored cool in closed containers, protected from
sunlight. Shelf-life is at least 3 months in unopened, original containers
stored up to a temperature of 20°C. Gel and curing times may change
with increasing duration of storage.