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
ACTFLEX 75FC Grey Polyurethane Joint Sealant
or 4 interest-free payments with
Fast-cure polyurethane joint sealant that holds its shape in vertical joints. Trade carton of 20 x 600 mL sausages.
ACTFLEX 75FC is a single-component, moisture-curing polyurethane joint sealant and construction adhesive for movement joints, junctions, penetrations and bonding. It guns without sag, tools smooth, and cures to a permanently elastic seal with 550% elongation. In Forspec waterproofing systems it is the specified joint sealant for sealed crack and junction details.
Where to use it
- Vertical and horizontal movement and control joints in concrete and masonry
- Crack and junction details in Forspec systems, to AS 3740 internally and AS 4654.2 externally
- Joint sealing under and next to solvent-based waterproofing
- Pipe and service penetrations in walls and floors
- Bonding metal angles to concrete, fibre cement, timber and primed PVC
- Prime first: ACTFLEX 700 PU PRIMER on dry internal surfaces, SUPERBOND 007 on metal, wood and PVC, EP250 on external or uneven cementitious surfaces
Why waterproofers buy it
- One part. Guns straight from the sausage, no mixing
- Non-sag, holds profile in vertical and overhead joints
- Skins in approx. 65 minutes, cures approx. 3.5 mm per 24 hours
- 550% elongation, 12.5% movement accommodation, Shore A approx. 38
- Bonds to concrete, masonry, fibre cement, metal, timber and primed PVC
- Low odour, non-staining and non-corrosive
- Over-paintable after full cure, trial first
- 10 year Forspec product warranty
Coverage
Per 600 mL sausage: approx. 16.5 m at 6 x 6 mm, 10 m at 10 x 6 mm, 8.3 m at 12 x 6 mm, 6 m at 10 x 10 mm, 3 m at 20 x 10 mm. 20 sausages per carton. Allow about 10% extra for tooling and wastage.
Not for
Structural glazing, continuous chlorinated-water immersion such as pools, three-sided adhesion (always fit backing rod or bond-breaker tape), damp or frosted substrates, application outside 10°C to 26°C, or water immersion before 5 days cure. Not resistant to alcohols, organic acids, or concentrated acids or alkalis.
All times at 25°C and 50% RH.
Non-sag - holds its profile in vertical and overhead joints
Fast moisture cure, approximately 3.5 mm per 24 hours at 25C and 50% RH
Carton of 20 x 600 mL sausages, one part straight from the pack with no mixing
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ACTFLEX 75FC Grey Polyurethane Joint Sealant
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia
How to Use
Technical Specifications
ACTFLEX 75FC Grey Polyurethane Joint Sealant
Sale price$260.00
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
- Elastic joint sealing of vertical and horizontal movement and control joints in concrete and masonry
- Sealed crack and junction details within Forspec waterproofing systems, per the relevant membrane TDS
- Joint sealing beneath and adjoining solvent-based waterproofing applications
- Sealing penetrations in walls and floors - pipes, services and fixings
- Bonding metal angles to concrete, fibre cement sheeting, timber and PVC with the specified primer
- Industrial and transport assembly - vehicle bodies, panels and underbody components
- Waterproofing exterior lap seams on truck trailers, metal roofs and window perimeters
Surface suitability
- Concrete (sound, clean and completely dry joint faces)
- Masonry (sound, clean and completely dry joint faces)
- Fibre cement sheeting
- Metal (primed with ACTFLEX SUPERBOND 007)
- Timber (primed with ACTFLEX SUPERBOND 007)
- PVC (primed with ACTFLEX SUPERBOND 007)
- Completely dry internal cementitious surfaces (primed with ACTFLEX 700 PU PRIMER)
- External or uneven cementitious surfaces (primed with ACTFLEX EP250)
Apply only between 10-26C ambient and substrate, to completely dry, sound substrates - never to damp, frosted or contaminated surfaces. Never permit three-sided adhesion: always install closed-cell backing rod or bond-breaker tape, because three-sided adhesion causes premature failure and is never permitted. Movement at the joint must not exceed the 12.5% movement accommodation factor. Water-immersion service only after a minimum of 5 days cure at 25C and 50% RH. Cure rate depends on atmospheric humidity and slows significantly in cool or dry air and at depth. Over-paint only after full cure and only after a preliminary compatibility trial, because some paint systems remain tacky or crack over elastic sealants. Not for structural glazing, and not for continuous chlorinated-water immersion such as pools. Not resistant to alcohols, organic acids, concentrated acids or alkalis, chlorinated hydrocarbons or fuels - confirm chemical exposure before use. Do not apply to silicone or bituminous substrates. Allow epoxy coatings to cure fully first, because uncured epoxy components may inhibit polyurethane cure. Do not use water, detergent, mineral turpentine or solvent-based solutions as tooling aids. Not for structural, safety-critical or overhead load-bearing bonding. Compatibility with bituminous surfaces, plasticised materials and existing sealants must be confirmed before application. Use an opened sausage on the day it is opened.
Technical Specifications
| Product Type | Single-component polyurethane joint sealant and construction adhesive |
| Chemical Base | Single-component polyurethane |
| Cure Mechanism | Moisture-curing |
| Colour | Grey |
| Packaging | 600 mL foil sausage, 20 sausages per carton |
| Density | 1.40 +/- 0.05 kg/L (DIN 53479)* |
| Shore A Hardness | Approx. 38 (DIN 53505)* |
| Tensile Strength | Approx. 2 N/mm2 (DIN 53504)* |
| Elongation at Break | 550% (GB/T 528)* |
| Tear Propagation Resistance | 6 N/mm minimum* |
| Movement Accommodation Factor | 12.5%* |
| Shrinkage | Approx. 5%* |
| Sag | 1 mm maximum, 20 mm profile at 25C* |
| Skin Time | Approx. 65 minutes @ 25C, 50% RH* |
| Cure Rate | Approx. 3.5 mm per 24 hours @ 25C, 50% RH* |
| Water-Immersion Service | Only after a minimum 5 days cure @ 25C, 50% RH* |
| Application Temperature | 10-26C ambient and substrate |
| Service Temperature | -10C to +65C* |
| VOC | 35.6 g/L as supplied |
| Minimum Joint Size | 6 mm x 6 mm |
| Sealant Depth | 6-15 mm |
| Shelf Life | 12 months unopened, stored as specified |
| Hazard Classification | Hazardous Chemical; Non-Dangerous Goods (SDS Chemwatch 62-6657) |
| * Typical Forspec R&D characteristic values determined at 25C and 50% RH - no accredited test report is cited for this product | |
Real Projects. Real Results.
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Pool Renovation
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Below Ground Retaining Wall
Sydney, NSW
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Concrete Water Tank
Perth, WA
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Commercial Podium
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Swimming Pool Construction
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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 the ACTFLEX 75FC Grey sealant?
CompatibilityACTFLEX 75FC Grey is a high-performance polyurethane joint sealant supplied in 600ml sausages, used for sealing expansion joints, construction joints, and movement joints in concrete, masonry, and metal substrates. Grey is the standard structural colour.
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What movement does 75FC accommodate?
Performance75FC is a high-movement polyurethane sealant suitable for joints with significant cyclic movement - typical movement class plus or minus 25%. Ideal for slab expansion joints, concrete tilt panel joints, and curtain wall perimeter joints.
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How is it applied?
InstallationCut the sausage end, load into a 600ml sausage gun (Forspec Heavy Duty Aluminium Gun), prime the substrate if specified, apply foam backer rod into the joint, then tool the bead with a smooth tool dipped in soapy water for a clean finish.
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Is 75FC paintable?
CompatibilityYes. ACTFLEX 75FC accepts paint once fully cured (typically 7-14 days for full cure depending on bead size and temperature). Test paint compatibility on a sample joint first.
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Where is it commonly specified?
Compliance75FC is specified for AS4654-compliant external waterproofing systems, AS3740 wet area perimeter joints (in conjunction with the appropriate membrane), and general construction expansion joint sealing.