CHEMICAL
PROPERTIES Araldite Epoxycoat O.P. gave the following result after 12-month
submersion
Water,
de-ionized Javel Water Sulphiric acid Nitric acid Acetic acid Caustic
soda Gasoline, leaded (petrol) Toluene Xylene 111-trichlorethane Skydrol
500 A (Hydraulic fluid) Octanol Fruit juices Sugar solution Styrene
Key:
+ Unaffected o Yellowing |
+ % 14 + % 10 +% 30 + % 30 + % 10 O % 20 + + + +
+ + + + + + |
INSTRUCTIONS
FOR USE PREPARATION New concrete or cementitious
substrates should be at least 28 days old when the moisture content of the substrate
should be less than 5 % All laitence and loose materials must be removed from
the concrete surface. If the concrete is strong and sound with light laitence,
this may be achieved by acid etching followed by thorough washing with water.
The floor must then be left to dry. Cracked or damaged concrete or heavy laitence
should be prepared by grit blasting or scrabbling until a solid surface is reached
showing exposed aggregate. If this leads to large variations in surface levels
these should be repaired before coating. A flat smooth surface free of laitence
is required or the appearance of the coating will be impaired. All dust and debris
should then be removed. Surfaces contaminated with oil or grease should be flame
cleaned or thoroughly washed with a good detergent.
MIXING Mechanical
mixing of resin based materials is preferred whenever possible. In order to avoid
trapping air in the material, mixers running at less than 400 R.P.M. are recommended.
COATING Araldite
Epoxycoat O.P. is supplied as two pre weighed packs in exact proportions.
No other materials should be added. STIR CONTENTS OF EACH TIN THOROUGHLY Pour
the entire contents of the hardener into the resin and mix until uniform. Spread
the coating evenly over the floor surface using a trowel, brush or roller. Apply
in two layers each approx. 0.3 mm. thick. Ensure that the second coat is applied
within the stated recoating interval. If not then intercoat adhesion may be impaired JOINTS Any
movement joints should be continued through the coating and properly sealed.
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