ACTFLEX BIOSET 20kg White

Name: ACTFLEX BIOSET 20kg White
Brand: Forspec Protective Coatings
SKU: AACT14
Price: 26.00 AUD
Availability: InStock

$26.00

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ACTFLEX BIOSET is a premium-grade polymer-modified cementitious tile adhesive classified as C2TE S1 in accordance with AS ISO 13007. It is designed for high-performance fixing of ceramic, porcelain, vitrified tiles, and most natural stones in internal and external applications. The formulation provides improved bond strength (C2), reduced slip for vertical applications (T), extended open time (E), and controlled deformability (S1) to accommodate minor substrate movement. It delivers strong mechanical keying, consistent adhesion, and long-term durability under normal building conditions.

C2TE S1 to AS ISO 13007, certified initial adhesion 2.194 N/mm2 against a 1.0 requirement

Direct-stick to cured FORSPEC membranes with no primer and no slip layer

Grout from 24 hours and full service from 72 hours at 25C, 50% RH

Quantity: 1

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ACTFLEX BIOSET 20kg White

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517

Product Details

ACTFLEX BIOSET is a premium-grade polymer modified cementitious tile adhesive classified as C2TE S1 in accordance with AS ISO 13007 standards. Designed for high-performance tile fixing, it delivers excellent bond strength, reduced slip, extended open time, and flexible performance for residential and commercial tiling applications.

Key Features

C2TE S1 classified tile adhesive
Polymer modified for enhanced adhesion
Reduced slip for wall and vertical applications
Extended open time for easier installation
Flexible adhesive for minor substrate movement
Suitable for internal and external use
Compatible with waterproofing membranes
Excellent workability and coverage

Recommended Applications

Ceramic tile installation
Porcelain and vitrified tile fixing
Natural stone applications
Residential tiling projects
Commercial tiling installations
Wall and floor applications
Internal and external areas

Ideal for professional tile installations requiring strong adhesion, flexibility, and long-lasting performance.

How to Use

Key the adhesive into the substrate with the flat side of the trowel, then comb with the correctly sized notched trowel at approximately 45 degrees to produce uniform ridgesConfirm the substrate is structurally sound, rigid and dimensionally stable, with deflection complying with AS 3958:2023
Clean the substrate of dust, oil, grease, wax, curing compounds, paint, laitance, sealers and loose or friable material
Mechanically remove weak surface layers and abrade smooth or non-porous surfaces to a mechanical key
Repair cracks, voids and defects before tiling and confirm surface regularity to AS 3958:2023
Treat substrates subject to rising damp or continuous moisture with an approved FORSPEC moisture-barrier system first
Where tiling over a FORSPEC membrane, confirm the membrane is fully cured per its TDS, clean and contamination-free, with light abrasion where required
Measure 5.0 to 5.5 L of clean water per 20 kg bag accurately into a clean mixing vessel first, then add the powder gradually while mixing
Mix with a low-speed electric mixer at 600 rpm or less for a minimum of 3 minutes to a smooth, lump-free consistency
Allow the mix to slake for 5 to 10 minutes, then re-mix for 1 minute without adding water
Key the adhesive firmly into the prepared substrate with the flat side of the trowel to eliminate air pockets
Comb immediately with the correctly sized notched trowel held at approximately 45 degrees to produce uniform ridges, trowel selection per AS 3958:2023 Table 5.6.2.2
Spread only the area that can be tiled within the open time - heat, wind and substrate porosity shorten it
Back-butter large-format tiles over 600 mm, external installations and wet areas
Place each tile with a sliding, pressing motion and tap with a rubber mallet to collapse the ridges
Lift tiles periodically to verify 100 percent adhesive coverage per AS 3958:2023 Table 5.6.5.2, and never fix into adhesive that has skinned or lost tack
Install movement joints per AS 3958:2023, honouring structural joints through the tile bed, and seal them with ACTFLEX MS PRO or ACTFLEX 75FC, never with adhesive or grout
Grout from 24 hours at 25C and 50% RH, allow light foot traffic from 24 hours and full service from 72 hours

Technical Specifications

Product Type: Polymer-modified cementitious tile adhesive (powder)
Designation: C2TE S1 (AS ISO 13007). C2 and S1 are certified; T and E are manufacturer classifications pending accredited verification
Packaging: 20 kg multi-wall paper bag with moisture-resistant inner lining
Initial Tensile Adhesion: 2.194 N/mm2 (AS ISO 13007.2, Report 571-2, requirement 1.0 N/mm2 minimum)
Adhesion After Water Immersion: 1.453 N/mm2 (Report 571-2)
Adhesion After Heat Ageing: 1.771 N/mm2 (Report 571-2)
Adhesion After Freeze-Thaw Cycling: 1.449 N/mm2 (Report 571-2)
Open-Time Adhesion: 0.856 N/mm2 (Report 571-2, requirement 0.5 N/mm2 minimum)
Transverse Deformation: 3.270 mm, S1 band 2.5-5 mm (Report 571-2)
System over ACTFLEX 989 CWP: adhesion 0.82, heat-aged 0.86, lime water 0.63 N/mm2, impermeability pass, crack bridging 0.89 mm (AS ISO 13007.5, Report 568-2)
System over ACTFLEX 906 WPU: initial adhesion 1.128, heat-aged 1.293 N/mm2, impermeability pass (AS ISO 13007.5, Report 569-2)
Slip: 0.5 mm or less*
Water Addition: 5.0-5.5 L per 20 kg bag (25-27.5% by weight of powder)
Mixed Yield: Approx. 15 L per 20 kg bag*
Pot Life: Up to 3 hours as tested at 23C, 50% RH*
Open Time: 30 minutes minimum*
Adjustment Time: 5-15 minutes*
Grouting: From 24 hours @ 25C, 50% RH
Light Foot Traffic: From 24 hours @ 25C, 50% RH
Full Service: From 72 hours @ 25C, 50% RH
Working Temperature: +5C to +35C
Coverage, 6 mm notch: 2.9-3.3 kg/m2, approx. 6-7 m2 per 20 kg bag*
Coverage, 10 mm notch: 4.4-5.0 kg/m2, approx. 4-4.5 m2 per 20 kg bag*
Coverage, 12 mm notch: 5.7-6.7 kg/m2, approx. 3-3.5 m2 per 20 kg bag*
Coverage, large format back-buttered: 6.7-8.0 kg/m2, approx. 2.5-3 m2 per 20 kg bag*
Shelf Life: 9 months, unopened, stored dry off the ground
Hazard Classification: Hazardous chemical (non-dangerous goods), signal word DANGER, contains crystalline silica (SDS Chemwatch 9010-40)
* Typical Forspec characteristic values

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System Build-Up Guide

Correct application makes all the difference.

View All Details

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

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

ACTFLEX BIOSET is a polymer-modified cementitious tile adhesive designated C2TE S1 in accordance with AS ISO 13007, for fixing ceramic, porcelain and vitrified tiles and most natural stone on internal and external walls and floors. The C2 adhesion and S1 deformability designations are certified under NATA-accredited testing (XTecGen Report 571-2); the T reduced-slip and E extended-open-time classifications are manufacturer classifications with accredited verification still scheduled, and the TDS says so plainly. It is the tested direct-stick adhesive for the FORSPEC liquid membrane range, with accredited AS ISO 13007.5 membrane-to-tile testing over ACTFLEX 989 CWP (Report 568-2) and ACTFLEX 906 WPU (Report 569-2).

Key applications

Direct-stick tiling to cured FORSPEC liquid-applied under-tile membranes - ACTFLEX 989 CWP, ACTFLEX 988 CWP and ACTFLEX 906 WPU systems
Internal and external floors and walls over prepared concrete, cement renders and screeds
Ceramic, porcelain and vitrified tiles
Most natural stone, stability-tested where moisture-sensitive
Plasterboard, fibre-cement and compressed fibre-cement substrates prepared per AS 3958:2023
Wet areas and external installations at 100% adhesive coverage with mandatory back-buttering
Large-format tiles over 600 mm, back-buttered

Surface suitability

Concrete (minimum 7 days cured, 28 days preferred for structural slabs, laitance removed, primed if excessively porous or dusty)
Cement renders (minimum 7 days cure, fully bonded, weak layers removed)
Cement screeds (minimum 7 days cure, longer for thick screeds, shrinkage cracks stabilised, dry and firm)
Plasterboard (securely fixed, no movement or flex, joints finished flush, primed where jointing compound has been used)
Fibre-cement sheeting walls (securely fixed, joints treated per the manufacturer, priming recommended)
Compressed fibre-cement sheet floors (joints treated, floor rigidity per AS 3958:2023)
External fibre-cement sheet (rated for external tiling, priming recommended)
FORSPEC liquid-applied under-tile membranes (fully cured per its TDS, clean, light abrasion may be required)

Not for continuous immersion - swimming pools and tanks use the appropriate FORSPEC membrane and adhesive system per the project specification. Not for metal substrates. Not for floors with deflection greater than span divided by 500. Not for substrates subject to ongoing shrinkage or movement such as timber floors, unstable substrates or high structural movement. Never apply below +5C or above +35C. Never fix into skinned adhesive - remove it and apply fresh material. Never use the adhesive to level or correct significant substrate irregularities. Movement joints are never filled with adhesive or grout. Moisture-sensitive or dimensionally unstable natural stone requires thermal and moisture stability testing before installation. Classified a hazardous chemical (non-dangerous goods) with the signal word DANGER: the powder contains crystalline silica (quartz) and portland cement, causes serious eye damage, may cause an allergic skin reaction and is suspected of causing genetic defects. Avoid all dust generation and inhalation, never dry-sweep spilt powder, add powder to water gently, and wear respiratory protection, gloves, protective clothing and eye and face protection during handling and mixing.

Technical Specifications

Product Type	Polymer-modified cementitious tile adhesive (powder)
Designation	C2TE S1 (AS ISO 13007). C2 and S1 are certified; T and E are manufacturer classifications pending accredited verification
Packaging	20 kg multi-wall paper bag with moisture-resistant inner lining
Initial Tensile Adhesion	2.194 N/mm2 (AS ISO 13007.2, Report 571-2, requirement 1.0 N/mm2 minimum)
Adhesion After Water Immersion	1.453 N/mm2 (Report 571-2)
Adhesion After Heat Ageing	1.771 N/mm2 (Report 571-2)
Adhesion After Freeze-Thaw Cycling	1.449 N/mm2 (Report 571-2)
Open-Time Adhesion	0.856 N/mm2 (Report 571-2, requirement 0.5 N/mm2 minimum)
Transverse Deformation	3.270 mm, S1 band 2.5-5 mm (Report 571-2)
System over ACTFLEX 989 CWP	adhesion 0.82, heat-aged 0.86, lime water 0.63 N/mm2, impermeability pass, crack bridging 0.89 mm (AS ISO 13007.5, Report 568-2)
System over ACTFLEX 906 WPU	initial adhesion 1.128, heat-aged 1.293 N/mm2, impermeability pass (AS ISO 13007.5, Report 569-2)
Slip	0.5 mm or less*
Water Addition	5.0-5.5 L per 20 kg bag (25-27.5% by weight of powder)
Mixed Yield	Approx. 15 L per 20 kg bag*
Pot Life	Up to 3 hours as tested at 23C, 50% RH*
Open Time	30 minutes minimum*
Adjustment Time	5-15 minutes*
Grouting	From 24 hours @ 25C, 50% RH
Light Foot Traffic	From 24 hours @ 25C, 50% RH
Full Service	From 72 hours @ 25C, 50% RH
Working Temperature	+5C to +35C
Coverage, 6 mm notch	2.9-3.3 kg/m2, approx. 6-7 m2 per 20 kg bag*
Coverage, 10 mm notch	4.4-5.0 kg/m2, approx. 4-4.5 m2 per 20 kg bag*
Coverage, 12 mm notch	5.7-6.7 kg/m2, approx. 3-3.5 m2 per 20 kg bag*
Coverage, large format back-buttered	6.7-8.0 kg/m2, approx. 2.5-3 m2 per 20 kg bag*
Shelf Life	9 months, unopened, stored dry off the ground
Hazard Classification	Hazardous chemical (non-dangerous goods), signal word DANGER, contains crystalline silica (SDS Chemwatch 9010-40)
* Typical Forspec characteristic values