ACTFLEX ULTRA TC UV topcoat membrane
100% solids two-component aliphatic polyurethane UV topcoat and standalone membrane
UV-stable, trafficable 1 : 1 finish over ACTFLEX 929 membranes, or a standalone membrane over EP250.
ACTFLEX ULTRA TC coverage, coats and cure times
100% solids two-component aliphatic polyurethane. It is the UV-stable face over cured ACTFLEX 929 SL and 929 HV, or a standalone trafficable membrane at 1.2 mm over two coats of ACTFLEX EP250.
- Mix ratio
- 1 : 1Part A to Part B, by volume and by weight · TDS p2
- Pack
- 40 kg kit20 kg Part A + 20 kg Part B · TDS p2
- Topcoat film
- 0.3–0.6 mmone coat over 929 SL or 929 HV, by duty · TDS p3
- Standalone
- 1.2 mm2 coats over 2 coats of ACTFLEX EP250 · TDS p3
- Coverage
- ≈ 43 m²per kit at 0.6 mm, practical; 21 m² at 1.2 mm · TDS p3
- Pot life
- 40 mintypicalat 25°C, shorter in heat · TDS p2
- Recoat
- 12–24 htypicalminimum 12 hours, maximum 24 hours · TDS p2
- Heavy traffic
- 7 daystypicalafter final coat; light foot traffic at 24 hours · TDS p4
- Apply at
- 10–30°Csubstrate 3°C above dew point, RH below 80% · TDS p1
From the FORSPEC data sheet, TDS-ULTRATC · Revision 4 · 12 November 2026. Times are at 25°C and 50% relative humidity unless the data sheet says otherwise. Typical = FORSPEC’s own typical value, not a laboratory-certified one.
Where ACTFLEX ULTRA TC is used
Use it for
- UV-stable topcoat over cured ACTFLEX 929 SL and 929 HV
- Standalone trafficable membrane over 2 coats of EP250, 1.2 mm DFT
- Exposed trafficable walls and floors needing a UV-stable finish
- Plant rooms, walkways, balconies and exposed horizontal surfaces
- New UV-stable wearing face on solvent-based polyurethane membranes
Know before you start
- Not a primer: standalone use needs two coats of ACTFLEX EP250 first
- Not for permanent immersion, pools, tanks or negative-side pressure
- Never dilute, and no part-mixing unless both parts are weighed accurately
How to apply ACTFLEX ULTRA TC
- 01
Prepare
Concrete cured 28 days, ground or shot blasted to an open profile, moisture 4.5% or less. Over 929 SL or 929 HV: fully cured, clean, sound and well adhered.
- 02
Prime
Standalone system only: two coats of ACTFLEX EP250, then apply 12 to 24 hours after the final EP250 coat. Beyond 24 hours, abrade, remove all dust and re-prime with ACTFLEX EP250.
- 03
Mix
Condition both parts to 15–25°C. Empty Part B into Part A and mix at 300–400 rpm for at least 3 minutes, decant and remix briefly. Apply straight away.
- 04
Apply
Notched squeegee and back-roll, or roller. Wet film equals dry film, so check with a wet film gauge. Topcoat: one coat at 0.3 or 0.6 mm. Standalone: two coats to 1.2 mm.
- 05
Recoat
Second coat after at least 12 hours and within 24. Beyond 24 hours, abrade, remove dust, solvent-wipe with FORSPEC EPOXY CLEANER and let it flash off.
- 06
Cure
Light foot traffic from 24 hours, heavy foot traffic from 7 days. Flood test a standalone membrane after full cure, for 24 hours.
A short guide from the data sheet. Read the full ACTFLEX ULTRA TC TDS before you start.
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 ULTRA TC questions
Is ACTFLEX ULTRA TC a topcoat or a membrane?
Both. Over cured ACTFLEX 929 SL or 929 HV it is the UV-stable topcoat. Over two coats of ACTFLEX EP250 at 1.2 mm total DFT it is a standalone trafficable membrane.
How much do I need?
A 40 kg kit covers about 86 m² at 0.3 mm, 43 m² at 0.6 mm and 21 m² at 1.2 mm in practice, allowing 10% for wastage. Theoretical yields are 95, 48 and 24 m².
Can I drive on it?
Yes, for cars and light vehicles once it is fully cured (7 days). It is also rated for heavy foot traffic. It is not designed for forklifts, heavy vehicles or steel-wheeled loads.
How long before I recoat?
At least 12 hours and within 24 hours at 25°C and 50% RH. After 24 hours, abrade and clean the surface first.
How long can I work with a mixed kit?
Pot life is 40 minutes at 25°C and 50% RH, and it shortens sharply as temperature rises. Mix only what you can lay in that time.
Is it certified?
The data sheet lists no certificate or test report. All performance values are typical FORSPEC R&D values, determined to the test standards it names. Do not rely on them for engineering design without written confirmation from FORSPEC Technical Services.
Used with ACTFLEX ULTRA TC
ACTFLEX ULTRA TC data sheet
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 ULTRA TC.