EU Lava 20 Application Guide (Surfaces) (1) - Flipbook - Page 19
Waterproofing with Lava 20
Polyurethane Coating System
Accelerating Cure &
Thicker Applications
Step-by-Step
Application:
Reasons for Bubbles
When applying Lava 20 add appropriate amount of
Lava 20 Catalyst to the mixture to speed up curing.
Mix thoroughly for 3 minutes.
For thicker layers use full appropriate size of Lava 20
Catalyst. This will speed up the drying time also.
Step 1: Apply Lava 20 onto the prepared and
primed surface. Use a roller, brush, or airless spray
to apply at a rate of 0.9 kg/m². If reinforcement is
needed, apply Lava 20 Polyester Fabric/ Chopped
Strand Matting.
Step 2: After 24 hours (and no more than 48 hours),
apply a second layer of Lava 20 at the same rate
(0.9 kg/m²). If Lava 20 Polyester Fabric/ Matting
was used in step 1, repeat this step, applying
additional layers at 0.6-0.9 kg/m².
Step 3: Allow 24 hours for curing before applying
the Optional Topcoats.
Not reinforced & applied too thick in one pass and
still outgassing.
Primer not dried underneath.
Not the right ratio of Catalyst or not mixed
correctly
Substrate moisture content.
Contamination
For optimal mixing, the Lava 20 liquid membrane and
catalyst should be blended using a low-speed, hightorque mixing drill with a suitable mixing paddle.
Avoiding Bubbles
Lava 20 Coverage (with Catalyst and Fleece):
A 25 kg of Lava 20, when used with full catalyst
and fleece, can cover a maximum of 10.90 sq m.
For practical purposes, aim for coverage areas like
11.15 sq m or 11.61 sq m, but do not exceed the
maximum limit, stated above to avoid bubbles.
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