ACTFLEX SUPERPRIME 008 Hybrid primer
Non-porous hybrid primer for solvent, hybrid and MS FORSPEC systems
One primer for ACTFLEX MS PRO, 906 WPU, 929 SL and 75FC on non-porous surfaces. Dry in 5–15 minutes.
ACTFLEX SUPERPRIME 008 coverage, coats and cure times
Moisture-reactive hybrid primer for metals, glass, ceramics, dense concrete and smooth cladding. One thin coat by brush, roller or lint-free cloth. For professional use only.
- Non-porous
- 8–12 m²/Ltypicalthin single coat · TDS p2
- Dense concrete
- 6–10 m²/Ltypicalthin single coat · TDS p2
- Coats
- 1one thin coat only · TDS p2
- Tack-free
- 2–4 mintypicalat 25°C and 50% RH · TDS p2
- Ready to coat
- 5–15 mintypicalfully dry, at 25°C and 50% RH · TDS p2
- Open time
- Up to 4 htypicalbefore overcoating, then re-prime · TDS p2
- Joint priming
- 100–150 m/Ltypicallinear metres per litre, 15 mm joint, two flanks · TDS p3
- Apply at
- +5 to +35°Csubstrate and ambient · TDS p2
- Pack
- 1000 mLcontainer, for professional use · TDS p2
From the FORSPEC data sheet, TDS-SUPERPRIME008 · Revision 1 · 25 August 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 SUPERPRIME 008 is used
Use it for
- Pre-treatment for ACTFLEX MS PRO on non-porous, timber and PVC
- Priming before ACTFLEX 906 WPU on non-porous and dense substrates
- Priming before ACTFLEX 929 SL membrane and ACTFLEX 75FC sealant
- Metals, glass, ceramics and dense concrete
- Facade and cladding on smooth substrates
- Expansion and construction joint sealing
Know before you start
- Not a waterproofing membrane or moisture barrier
- Not on wet surfaces or in high humidity: it cures early and the bond fails
- Apply thin. Too much primer forms a weak layer
- Not below 5°C or above 35°C. UV protection is mandatory on transparent substrates
Its FORSPEC systems
How to apply ACTFLEX SUPERPRIME 008
- 01
Prepare
Clean, dry surface free of dust, dirt, grease, oil, wax and release agents. Scuff, abrade or activate to improve adhesion. Solvent-wipe if needed and let it dry. Vacuum or blow off fine dust.
- 02
Test
A patch test on the actual substrate is mandatory before use. Seek maker advice before using on materials prone to stress cracking.
- 03
Apply
Shake or stir well. Apply a thin, even layer with a clean brush, roller or lint-free cloth. Do not apply on wet surfaces. Keep the container closed when not in use.
- 04
Dry
Tack-free in 2–4 minutes and fully dry in 5–15 minutes at 25°C and 50% RH. Let it dry completely before the next product.
- 05
Overcoat
Apply ACTFLEX MS PRO, 906 WPU, 929 SL or 75FC within the open time, up to 4 hours. If exceeded, re-prime.
A short guide from the data sheet. Read the full ACTFLEX SUPERPRIME 008 TDS before you start.
How much ACTFLEX SUPERPRIME 008 do I need?
1 L
The same primer figures the membrane calculators use, at the low end of each TDS range. The membrane's own TDS names the primer for your substrate: check it before you order.
You need
0 packs
Where the figures come from
The same primer figures the membrane calculators use, at the low end of each TDS range. The membrane's own TDS names the primer for your substrate: check it before you order.
- EP 250 per coat; kit yields: 0.32 kg/m²; 4 kg kit 12.5 m² one coat, about 6.3 m² two coats; 20 kg kit 62.5 and 31.3 m². TDS-EP250, R4, 12 Nov 2026, page 3
- 700 PU: 4 to 6 m²/L per coat (17 L at 4 m²/L = 68 m²). TDS-700PU, R2, 12 Aug 2026, page 2
- ACTFLEX 300 tack coat: 15 kg pail primes about 45 to 75 m² per coat (45 used). TDS-ACTFLEX300, R2, 12 Aug 2026, page 3
- SUPERBOND 007, dense substrates: 8 to 12 m²/L (8 used); 1000 mL pack. TDS-SUPERBOND007, R1, 25 Aug 2026, page 2
- SUPERPRIME 008, non-porous: 8 to 12 m²/L (8 used); 1000 mL pack. TDS-SUPERPRIME008, R1, 25 Aug 2026, page 2
More: ACTFLEX SUPERPRIME 008 product page · Tile adhesives system
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 SUPERPRIME 008 questions
Which primer do I use under ACTFLEX MS PRO or 906 WPU?
ACTFLEX SUPERPRIME 008. It is the specified primer for ACTFLEX MS PRO on non-porous, timber and PVC substrates and is approved ahead of ACTFLEX 906 WPU, 929 SL and 75FC.
Should I use SUPERPRIME 008 or SUPERBOND 007?
SUPERPRIME 008 covers solvent, hybrid and MS systems. Where the system is solvent-based only, ACTFLEX 75FC or 929 SL without MS or hybrid products, ACTFLEX SUPERBOND 007 may be specified instead.
How much do I need?
A 1000 mL container covers about 6–12 m². That is 8–12 m² per litre on non-porous surfaces and 6–10 m² per litre on dense concrete. Do a trial area first. Typical values.
Can I put on a second coat?
No. One thin coat is the full specification. Over-application wastes product and degrades the bond.
How long can I keep an opened container?
One month with frequent use, two months with infrequent use. Reseal it straight away. Discard it if it gels, separates or thickens.
Can I apply it on a damp or humid day?
No. On wet surfaces or in high humidity it cures too early and the bond will fail.
Used with ACTFLEX SUPERPRIME 008
ACTFLEX SUPERPRIME 008 TDS and SDS
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 SUPERPRIME 008.