Pool System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX HYDROPLUG
- 5 ACTFLEX AT MESH
- 6 ACTFLEX 988 CWP (2 Coats)
- 7 Tile Adhesive
- 8 Pool Finish
Flood Test Balloon
$28.00
ACTFLEX 400 CLEAR Waterproofing Membrane
$66.00
Innovative Tools 230mm FC Sheeting Puddle Flange Recess Kit
$504.00
Soudal T-Rex Crystal
$17.85
Puddle Pro 90mm Puddle Flange
$15.00
Puddle Pro 100mm Puddle Flange
$15.00
BAT Spike Roller 21mm x 500mm
$55.00
ACTFLEX 400 CLEAR Temporary Leak Repair Kit For Leaking Bathrooms & Balconies
$94.35

Factory-formed PVC internal corner for POLYFIN. Welds straight into the corner detail, so no corner is hand-formed on site.
POLYFIN Inner Corner is a factory-formed PVC internal waterproofing corner made for POLYFIN membrane systems. It is engineered for wall-to-floor junctions, internal corners and membrane upturns, and gives a consistent waterproof transition without complex on-site fabrication. It hot-air welds directly into the membrane corner detail.
What it's for
Why waterproofers buy it
Specs
PVC-coated prefabricated component, grey. Corner type: internal. Size Forspec publishes: standard prefabricated corner. Hot-air welded to compatible POLYFIN membranes.
Forspec publishes no thickness for this corner. Confirm the size with us before you order.
Pickup available at The Waterproofing Shop
Usually ready in 24 hours

POLYFIN Inner Corner Metal Roof 1.2
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia

Correct application makes all the difference.
| Product Type | Factory-formed PVC internal waterproofing corner |
| Chemical Base | PVC-coated prefabricated component |
| Colour | Grey |
| Corner Type | Internal |
| Joint Configuration | Corner transition |
| Orientation | Vertical or horizontal |
| Jointing Method | Hot-air welded to compatible POLYFIN waterproofing membranes |
| Size published by Forspec | Standard prefabricated corner |
| Recommended Thickness | Varies by accessory - no figure published |
| System Compatibility | POLYFIN waterproofing membrane systems, and PREBAR PVC WATERSTOP |
Before
After
Gold Coast, QLD
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After
Sydney, NSW
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After
Perth, WA
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After
Melbourne, VIC
Brisbane, QLD
Step-by-step from prep to top coat. Filmed on the tools, not in a studio.

We supply premium waterproofing products backed by expert advice, fast service and real-world experience.