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
EXPANDOFLEX FT Expansion Tape 250mm x 25m
or 4 interest-free payments with
Felt-faced TPE joint tape. The membrane bonds into it, not just onto it.
FORSPEC EXPANDOFLEX FT JOINT TAPE is a felt-laminated thermoplastic elastomer tape for structural and movement joints built into a liquid or sheet membrane. The TPE core carries the movement, the felt edges give the membrane a key, and the underside is epoxy anchored with PROBOND 1100.
What it's for
- Primary and transverse movement joints (PMJ and TMJ)
- Base-to-wall transitions and floor-to-wall upturns
Why waterproofers buy it
- Membrane terminates into the felt, no cold joint
- Root resistant, UV stable, flexible from minus 30°C to plus 80°C
- 10 year Forspec product warranty
Specs
TPE core, polyester felt both edges. PROBOND 1100 at 1.0 to 1.5 mm, minimum 40 mm per face. Install at 5°C to 35°C. Cure 24 to 48 hours before membrane.
Not for
Load bearing, coverplate duty or bad joint design. Never epoxy the felt face or the centre zone. Not below 5°C or above 35°C.
Dual felt-laminated flanges, so the membrane bonds into the tape for a seamless termination
Transversely flexible and longitudinally stable, absorbing joint movement while holding its line
Root resistant and UV stable, thermally flexible from -30C to +80C
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EXPANDOFLEX FT Expansion Tape 250mm x 25m
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia
How to Use
Technical Specifications
Product Files
EXPANDOFLEX FT Expansion Tape 250mm x 25m
Sale price$550.00
Frequently bought together
System Build-Up Guide
Correct application makes all the difference.
Retaining Wall System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX MS PRO
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 CWP (2 Coats)
- 6 Protection Board (Optional)
- 7 Drainage System
- 8 Backfill
Tank System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 WMP (2 Coats)
- 6 Protective Coating (Optional)
- 7 Water
Technical overview
Key applications
- Primary movement joints (PMJ) and transverse movement joints (TMJ)
- Structural movement joints in above and below ground construction
- Base-to-wall transitions and floor-to-wall upturns
- Tunnel, retaining wall and podium slab joints
- Planter and green roof joints requiring root resistance
- Joints requiring integration into a liquid-applied or sheet membrane system
Surface suitability
- Concrete (diamond ground or shot blasted to remove laitance and open a bonding profile)
- Concrete (dry, structurally sound and free from dust, curing agents, form oil, sealers and any bond inhibiting contaminant)
- Concrete (damaged or spalled arrises reinstated with FORBUILD 100 or FORCRETE 100 and fully cured)
Only the bottom elastomeric side is bondable with epoxy. Never apply adhesive to the felt face and never allow epoxy to contact the felt-laminated upper surface or bridge the central movement zone, because epoxy across the centre destroys the joint's ability to move. Do not coat the central movement zone with membrane. Do not install below 5C or above 35C. This is not a load-bearing joint and not an expansion joint coverplate: it waterproofs the joint, it does not carry load, and it is not a substitute for correct joint design, because a tape cannot rectify an undersized or wrongly positioned joint. The joint design must conform to the movement allowance and deflection dimensions specified by the project structural engineer. Do not dilute or re-mix cured PROBOND 1100 epoxy. Use a hot air gun for welding and forming, never an open flame.
Technical Specifications
| Form | Felt-laminated thermoplastic elastomer tape |
| Construction | High-strength TPE core with polyester felt bonded to both edges |
| Movement Behaviour | Transversely flexible, longitudinally stable* |
| Service Temperature | -30C to +80C* |
| Root Resistance | Root-resistant* |
| Chemical Resistance | Resistant to wastewater and aggressive ground conditions* |
| Ultraviolet Stability | UV stable* |
| Bonding Adhesive | PROBOND 1100 epoxy |
| Epoxy Bonding Width | Minimum 40mm per face, matched to the tape flange, typically 40mm or 50mm |
| Epoxy Layer Thickness | 1.0 to 1.5mm, bedding and capping |
| Overlap for Continuous Runs | Minimum 50mm, non-felt undersides bonded with PROBOND 1100 |
| Membrane Overlap | Minimum 100mm beyond each edge of the tape |
| Installation Temperature | 5C to 35C, ambient and substrate |
| Cure Before Movement or Membrane | 24 to 48 hours at 20C |
| Membrane Compatibility | Polyurethane, polyurea, bitumen-based and acrylic waterproofing systems |
| * Manufacturer characteristic values pending accredited verification testing | |
Real Projects. Real Results.
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Before
After
Pool Renovation
Gold Coast, QLD
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Before
After
Below Ground Retaining Wall
Sydney, NSW
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Before
After
Concrete Water Tank
Perth, WA
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Before
After
Commercial Podium
Melbourne, VIC
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Before After
Swimming Pool Construction
Brisbane, QLD
Watch the install
Step-by-step from prep to top coat. Filmed on the tools, not in a studio.
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Frequently asked questions
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What is EXPANDOFLEX FT used for?
CompatibilityEXPANDOFLEX FT is a wide-format felt-laminated TPE joint tape for structural and movement joints in tunnels, retaining walls, slab joints, parapets, and waterproofing transitions. The 250mm width handles the largest movement joints.
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Specifications?
Performance250mm width by 25m roll. 1.5mm thick (±0.15mm). Grey TPE core with white felt flanks. 580% transverse elongation - the highest in the Forspec joint tape range. Tear resistance greater than 25 N/mm. Density approximately 1.3 g/cm³.
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How is it installed?
InstallationDual-bonded felt edges embed into both liquid-applied and sheet-applied waterproofing systems. Apply at 5-40°C ambient. Position across the structural joint with the centre TPE band spanning the movement zone.
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Which systems is it compatible with?
CompatibilityCompatible with the Forspec liquid membrane range (906 WPU, 929 HV/SL, 988 CWP) and sheet membranes (ACTFLEX 5000). The wide format handles structural joints that smaller tapes can't span.
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When is the wide format needed?
PerformanceSpecify 250mm EXPANDOFLEX for major structural joints (50mm+ movement), tunnel construction joints, retaining wall expansion joints, and parapet movement joints where the joint width and movement are too large for 120mm tapes.