Devcon DFense Blok 30 lb
Description
A 5mm thick section of DFense Blok will harden at 25ºC in
4-5 hours. The material will be fully cured in 16 hours. The
actual cure time of epoxy is determined by the mass used
and the environmental conditions at the time of repair
Proper surface preparation is essential to a successful
application. The following procedures should be considered:
If abrasive blasting is not possible and expanded metal
cannot be welded in place then the Surface Wetting Agent
is essential where maximum adhesion to substrate is
required. This should be applied at 250 to 500 microns
after which the DFence Blok can be applied immediately.
For bridging large gaps or holes it is essential to place fibreglass sheet, expanded metal or other suitable mechanical
fasteners across the area prior to application of the DFence
Blok.
Add the hardener to the resin then mix thoroughly
using a suitable mixing paddle or suitable size jiffy type
mixer. Mix in such a fashion that the material is thoroughly
dispersed from top to bottom of the container until
homogenous.
Spread the material over the prepared surface with a putty
knife or spatula pressing firmly into all cracks and voids to
ensure maximum surface contact and avoid trapping air.
A film of at least 5mm and up to 15mm can be applied in
one coat if required even onto vertical surfaces without
sagging. If a coat of greater than 15mm is required then it
is important to let the first coat cure partially until firm such
that the a subsequent coat can be applied.
For overhead applications it is possible to build 10mm in
one coat, again if more is required then it is important to
leave it to cure to firm before subsequent applications.
A shelf life of 3 years from date of manufacture can be
expected when stored at room temperature (22ºC) in their
original containers.
For complete safety and handling information, please refer
to Material Safety Data Sheets (MSDS) prior to using this
product.
ITW Performance Polymers will replace any material found to
be defective. As storage, handling and application of this
material is beyond our control we can accept no liability
for the results obtained.
TDS
SDS
Videos for Devcon DFense Blok Impact Test
Distributor for devcon in South East Asia
Devcon Distributor for Singapore
Devcon Distributor for Cambodia
Devcon Distributor for Brunei
Devcon Distributor for Cambodia
Devcon Distributor for Myanmar
Largest Stockist for devcon products.
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Devcon DFense Blok 30 lb
Alumina Ceramic bead filled epoxy
system with outstanding abrasion
resistance for severe service conditions.
RECOMMENDED APPLICATIONS
- Repairs to ash handling systems
and scrubbers - Prevents wear on metal surfaces that
are exposed to severe abrasion and
erosion such as chutes and launders - Non sagging formulation
- Protecting flanges and elbows
- Lining bins and hoppers
APPLICATION INFORMATION
CURE
A 5mm thick section of DFense Blok will harden at 25ºC in
4-5 hours. The material will be fully cured in 16 hours. The
actual cure time of epoxy is determined by the mass used
and the environmental conditions at the time of repair
SURFACE PREPARATION
Proper surface preparation is essential to a successful
application. The following procedures should be considered:
- All surfaces must be dry, clean and with a suitable profile
to facilitate bonding to the substrate. - If surface is oily or greasy use Devcon Fast Cleaner 2000
Spray/Cleaner Blend 300 to degrease the surface. - Remove any existing paint, rust or other contamination
from the surface by abrasive blasting or other mechanical
techniques. Further reference can be made here to the
Devcon Metal filled user guide. - Aluminium repairs: Oxidation of aluminium surfaces will
reduce the adhesion of an epoxy to a surface.
This film must be removed before repairing the surface,
by mechanical means such as grit-blasting, abrading or
chemical means. - Provide a “profile” on the metal surface by roughening the
surface. This should be done ideally by grit blasting (8-40
mesh grit), or by grinding with a coarse wheel or abrasive
disc pad. An abrasive disc may be used provided white
metal is revealed. Do not ’feather edge’ epoxy materials.
Epoxy material must be ’locked in’ by defined edges and
a good 3-5 mil profile. - Metal that has been handling sea water or other salt
solutions should be grit blasted and high pressure water
blasted and left overnight to allow any salts in the metal
to ’sweat’ to the surface. Repeat blasting may be
required to ’sweat out’ all the soluble salts. A test for
chloride contamination should be performed prior to
any epoxy application. The maximum soluble salts left on
the substrate should be no more than 40 ppm (parts per
million). - Chemical cleaning with Devcon Fast Cleaner 2000 Spray/
Cleaner Blend 300 should follow all abrasive preparation.
This will help to remove all traces of sandblasting, grit, oil,
grease, dust or other foreign substances. - Under cold working conditions, heating the repair area
to 38ºC-43º C immediately before applying any of
Devcon Epoxies is recommended. This procedure dries
off any moisture, contamination or solvents and assists
the epoxy in achieving maximum adhesion to the substrate. - Always try to make the repair as soon as possible after
cleaning the substrate, to avoid oxidation or flash rusting.
If this is not practical, a general application of FL-10 Primer
will keep metal surfaces from flash rusting.
ADDITIONAL SURFACE PREPARATION INFORMATION
If abrasive blasting is not possible and expanded metal
cannot be welded in place then the Surface Wetting Agent
is essential where maximum adhesion to substrate is
required. This should be applied at 250 to 500 microns
after which the DFence Blok can be applied immediately.
For bridging large gaps or holes it is essential to place fibreglass sheet, expanded metal or other suitable mechanical
fasteners across the area prior to application of the DFence
Blok.
MIXING
Add the hardener to the resin then mix thoroughly
using a suitable mixing paddle or suitable size jiffy type
mixer. Mix in such a fashion that the material is thoroughly
dispersed from top to bottom of the container until
homogenous.
APPLICATION
Spread the material over the prepared surface with a putty
knife or spatula pressing firmly into all cracks and voids to
ensure maximum surface contact and avoid trapping air.
A film of at least 5mm and up to 15mm can be applied in
one coat if required even onto vertical surfaces without
sagging. If a coat of greater than 15mm is required then it
is important to let the first coat cure partially until firm such
that the a subsequent coat can be applied.
For overhead applications it is possible to build 10mm in
one coat, again if more is required then it is important to
leave it to cure to firm before subsequent applications.
SHELF LIFE & STORAGE
A shelf life of 3 years from date of manufacture can be
expected when stored at room temperature (22ºC) in their
original containers.
PRECAUTION
For complete safety and handling information, please refer
to Material Safety Data Sheets (MSDS) prior to using this
product.
WARRANTY
ITW Performance Polymers will replace any material found to
be defective. As storage, handling and application of this
material is beyond our control we can accept no liability
for the results obtained.
TDS
SDS
Read more about Devcon products
Videos for Devcon DFense Blok Impact Test
Distributor for devcon in South East Asia
Devcon Distributor for Singapore
Devcon Distributor for Cambodia
Devcon Distributor for Brunei
Devcon Distributor for Cambodia
Devcon Distributor for Myanmar
Largest Stockist for devcon products.
Devcon DFense Blok 30 lb
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