ACTFLEX 101 UV Exposed acrylic membrane
UV-stable co-polymer Class III waterproofing membrane
Class III exposed roof and facade membrane. Retains 317% elongation after UV testing.
How ACTFLEX 101 UV goes on
ACTFLEX 101 UV coverage, coats and cure times
Single-component acrylic membrane for permanently exposed rooftops, facades, parapets, box gutters and podiums. It applies by roller, brush or spray and is tintable to pastel shades.
- Coverage
- 7–9 m²practical, per 15 L pail at 1.2 mm in 2 coats · TDS p3
- Dry film
- 1.2 mmroofs and gutters; 0.8 mm on exposed walls · TDS p3
- Coats
- 2minimum, second at about right angles · TDS p5
- Recoat
- 6–48 hminimum 6 hours, maximum 48 hours · TDS p5
- Light traffic
- From 24 hafter the final coat, maintenance traffic only · TDS p2
- Rain protection
- 72 hfrom rain and water after the final coat · TDS p2
- Full cure
- 14 daysafter the final coat · TDS p2
- Pack
- 15 L pail20 kg, grey or white · TDS p2
- Apply at
- 10–26°Cambient and substrate · TDS p2
From the FORSPEC data sheet, TDS-101UV · Revision 2 · 12 August 2026. Times are at 25°C and 50% relative humidity unless the data sheet says otherwise.
ACTFLEX 101 UV on site
More FORSPEC jobs
Where ACTFLEX 101 UV is used
Use it for
- Exposed rooftops and protected or exposed podium slabs
- Wall facades and parapet walls
- Box gutters and exposed horizontal drainage surfaces
- Beneath pedestal-supported paver systems over cured membrane
- External above-ground waterproofing to AS 4654.1 and AS 4654.2
Know before you start
- Not for constantly submerged use or chlorine environments
- Not a vapour barrier and not for negative-side hydrostatic pressure
- Maintenance foot traffic only, not a trafficable wearing surface
- Dry substrates only, 10–26°C, and never if rain threatens
Its FORSPEC systems
How to apply ACTFLEX 101 UV
- 01
Prepare
Concrete cured 28 days, renders and screeds 7 days, wood-trowel finish. Surface clean, dry and sound. Falls to outlets at least 1:100.
- 02
Prime
ACTFLEX EP250 on porous and cementitious surfaces: one coat, or two where concrete is under 28 days old or moisture is high. ACTFLEX SUPERPRIME 008 on metal and PVC.
- 03
Detail
Cracks under 2 mm: ACTFLEX SA TAPE, ends lapped 50 mm. Cracks 2 mm and over: 6 x 6 mm reglet filled with ACTFLEX MS PRO. Tape wall and floor junctions 50 mm onto each plane.
- 04
Mix
Single component. Cut out any skin, then mix with a drill and low-speed paddle until uniform. Avoid high speed. Do not dilute.
- 05
Apply
Roller, brush or airless spray. Two coats at 0.92 mm wet for 0.6 mm dry each on roofs, the second at about right angles. Recoat from 6 hours and within 48 hours.
- 06
Cure
Protect from rain and water for 72 hours. Light foot traffic from 24 hours, full cure at 14 days. Pedestal pavers go on after full cure, with rubber pads under each base.
A short guide from the data sheet. Read the full ACTFLEX 101 UV TDS before you start.
How much ACTFLEX 101 UV do I need?
UV-stable roof membrane, 15 L pail
Roofs, gutters and exposed horizontals: 1.2 mm dry in two coats, about 1.84 L/m². Exposed walls: 0.8 mm in two coats, about 1.23 L/m². With 10% that lands on the TDS practical yield: 7 to 9 m² a pail on roofs, 11 to 13 m² on walls. Primer: EP 250 at 0.32 kg/m² a coat (4 kg kit, about 12.5 m² one coat), two coats on damp or new concrete. SuperPrime 008 on metal and PVC, about 8 m² per litre.
You need
0 pails
Where the figures come from
Roofs, gutters and exposed horizontals: 1.2 mm dry in two coats, about 1.84 L/m². Exposed walls: 0.8 mm in two coats, about 1.23 L/m². With 10% that lands on the TDS practical yield: 7 to 9 m² a pail on roofs, 11 to 13 m² on walls. Primer: EP 250 at 0.32 kg/m² a coat (4 kg kit, about 12.5 m² one coat), two coats on damp or new concrete. SuperPrime 008 on metal and PVC, about 8 m² per litre.
- Per coat at 0.6 mm dry; two-coat 1.2 mm system: 0.92 L/m²; about 1.84 L/m². TDS-101UV, R2, 12 Aug 2026, page 5
- Two-coat 0.8 mm wall system: 0.62 L/m² per coat, 1.23 L/m² total. TDS-101UV, R2, 12 Aug 2026, page 3
- Practical yield per 15 L pail: 7 to 9 m² roofs; 11 to 13 m² walls. TDS-101UV, R2, 12 Aug 2026, page 3
- EP 250 4 kg kit: 12.5 m² one coat; about 6.3 m² two coats. TDS-EP250, R4, 12 Nov 2026, page 3
- SuperPrime 008 on non-porous; pack: 8 to 12 m²/L (8 used); 1000 mL. TDS-SUPERPRIME008, R1, 25 Aug 2026, page 2
Drawings for the systems it goes in
FORSPEC standard details as PDF and DXF. Each sheet is a generic detail: the specification names the products.
ACTFLEX 101 UV test reports and compliance
- AS 4654.1-2012
- Complies, Class IIIXTecGen Report 254-1
- Cyclic movement (AS 4654.1 App. B)
- Pass, failure not observedXTecGen Report 254-1
- Abrasion (AS 1580.403.2)
- 0.071 mm non-trafficable; 0.156 mm pedestrian onlyXTecGen Report 254-1
- VOC content
- 45 g/LFORAY Certificate P23010038
Download the reports
Results as stated in the data sheet, TDS-101UV · Revision 2 · 12 August 2026. Warranty up to 25 years, depending on the system: ask FORSPEC which term applies to your system.
ACTFLEX 101 UV questions
How much ACTFLEX 101 UV do I need?
One 15 L pail covers about 7 to 9 m² in practice at 1.2 mm in two coats (9 to 10 m² in theory). Walls at 0.8 mm cover about 11 to 13 m² in practice. Use the practical figure for ordering.
Can I leave it exposed to the sun?
Yes. It is made for permanently exposed work and kept 317% elongation after UV exposure testing. It can be tinted to pastel shades, never above 1% acrylic tint.
Do I need a primer under 101 UV?
On porous and cementitious surfaces, yes: ACTFLEX EP250, one coat, or two if the concrete is under 28 days old or moisture is high. Use ACTFLEX SUPERPRIME 008 on metal and PVC.
Can I lay pavers on it?
Yes, pedestal pavers, once the membrane is fully cured (14 days) and inspected. Put rubber matting or approved pads under every pedestal base. Never drag bases over the membrane.
How long before rain or foot traffic?
Protect from rain and water for 72 hours after the final coat. Light foot traffic is allowed from 24 hours. Full cure takes 14 days.
Used with ACTFLEX 101 UV
ACTFLEX 101 UV TDS and SDS
Show all 5 documents ↓
Always work from the current data sheet. Every FORSPEC TDS and SDS →
Specify it. Or buy it.
Send the drawings or photos and FORSPEC comes back with the system, the details and the quantities. Or find a FORSPEC stockist for ACTFLEX 101 UV.