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Pool waterproofing. Detailed the right way.
·1 min read·FORSPEC Technical Team
The short version
- A concrete pool coated in ACTFLEX 988 CWP, with every junction coved and every penetration detailed.
- Three coats to 1.5 mm, with ACTFLEX AT-MESH bedded into the wet first coat and fully covered.
- A pool is filled no earlier than 10 days after the final coat.
A pool shell is all corners: wall to floor, step to wall, pipe through wall. The membrane is only as good as those junctions.
FORSPEC on Instagram · 8 Nov 2026A pool in ACTFLEX 988 CWP with AT-MESHLoads when you tapWhat good detailing looks like
- A 35 x 35 mm cove of ACTFLEX FLEXIPLUG at every junction, so the membrane turns a curve and not a sharp corner.
- ACTFLEX AT-MESH bedded into the wet first coat over the coves and joints.
- Two more coats over the mesh, in alternating directions, until the mesh is fully covered.
The figures
- Coats in pools and tanks
- Three, with AT-MESH
- Dry film
- 1.5 mm
- Recoat
- After 4 to 6 hours
- Coverage
- About 6.4 to 8 m² per 20 kg kit at 1.5 mm
- Fill
- At least 10 days after the final coat
Where this comes from
Systems, products and drawings
SystemPools, Tanks & Water-Retaining StructuresThe full build-up, layer by layer→ProductACTFLEX 988 CWPTwo-part cementitious acrylic membrane for basements, tanks and pools that applies to damp cured concrete, normally without primer.→ProductACTFLEX AT-MESHReinforcing fabric embedded in the wet first coat of liquid membranes to strengthen coves, joints and transitions.→ProductACTFLEX FLEXIPLUGTwo-component elastomeric repair mortar that seals joints, cracks, corners and penetrations and forms the details beneath FORSPEC membranes.→RangeAll FORSPEC productsBy system, with data sheets and calculators→
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