EPOXY BASED COALTAR COATING
PRODUCT CATEGORY: REPAIR
CIS COALTAR COAT – 667 is a solvent free, epoxy resin system modified with refined tar pitch. The combination of epoxy resin with tar gives the excellent adhesion and chemical resistance of epoxy, together with the flexibility and superior water resistance of tar based materials
Damp proof membrane. Water and chemical resistant coating for pipes, sewerage and effluent plants. Anti-skid applications in conjunction with non-slip aggregates. Protection of bitumen, asphalt and tar based surfaces from attack by fuels and oils.
Excellent all round water and chemical resistance. Suitable for most substrates and application techniques. Excellent in all waterproofing applications. Excellent adhesion and flexibility. Complies with ASTM C188 Type III bonding of skidresistant surfacing.
SURFACE PREPARATION
Surfaces to be treated should be clean, dry,free of dust, grease and any other contaminants.
Concrete surfaces should be free of laitance (grit blast or scabble). Steel should be
cleaned and abraded to a
bright, profiled metal finish with no rust or corrosion
MIXING
CIS COALTAR COAT – 667 is supplied as two component product i.e. resin and hardener
components The packs are pre-weighed in the correct proportions for mixing. Mix ratio is 8
parts resin to 1 part hardener by
weight. A suitable slow speed electric drill stirrer should be used. If the pack is to be
split the resin component
must be thoroughly mixed prior to use.
Mix resin and hardener for at least 1 minute, paying special attention to sides and bottom
of container
APPLICATION – INJECTION PROCEDURE
On highly absorbent surfaces such as cement boards, concrete etc. dilute the first coat
with 10% Dr. Fixit Resin
Cleaner Solvent as a priming coat.
Apply using brush, roller or airless spray.
Apply as many coats as required to achieve desired thickness of finished coating. Allow to
set between coats but
apply subsequent coats within 24 hours.
Working time is 40 - 50 minutes at 20oC. Full cure to achieve maximum chemical resistance 72
hours at 20 C
constant.
If CIS COALTAR COAT – 667 coating is to receive another system i.e. tiles, resin mortar or
epoxy screed, it is
preferable to “blind”
the surface with non-slip aggregates before initial set, in order to provide a “key” for
subsequent finishes
CLEANING
Remove surplus material
from tools and equipment with CIS CLEAN MASTER
Up to 4 m2 per litre at 250 microns DFT dependent on application
15 litres
Shelf life is 12 months from the date of manufacturing if stored in original and unopened packaging in a cool dry place away from direct sunlight