STAUF VPU 155 S Solvent Free Polyurethane Primer 5kg

£69.99 Inc Vat

STAUF VPU 155 S serves dual purposes as a primer and damp proof membrane (DPM). As a primer, it prepares various subfloors—including mastic asphalt screed, concrete, calcium sulphate floors, wooden planks, wood fibre boards, chipboards, OSB boards, unlaminated gypsum fibre boards, and cement floors—for the application of STAUF polyurethane, SPU, or SMP-based adhesives, ensuring optimal adhesion. As a DPM, it effectively seals cement subfloors with residual moisture up to 3.5 CM%, preventing moisture-related issues and promoting the longevity of your flooring installation.

SKU: ACS-STA-PRI Categories: Adhesives & Primer, Flooring Accessories Tag: Primer

STAUF VPU 155

STAUF VPU 155 S is a solvent-free polyurethane primer designed as a damp proof membrane for cement subfloors with residual moisture up to 3.5 CM%. This economical and universally applicable primer ensures a dust-free surface, ideal for subsequent installations using STAUF polyurethane, SPU, or SMP-based adhesives. Suitable for various subfloors, including mastic asphalt screed, concrete, calcium sulphate floors, wooden planks, wood fibre boards, chipboards, OSB boards, unlaminated gypsum fibre boards, and cement floors.

STAUF VPU 155 S offers excellent coverage, ensuring efficient and cost-effective application.

As a Primer: For subfloor priming, a single coat is typically sufficient, covering approximately 40-50 m² per 5kg container, depending on the absorbency and condition of the subfloor. This ensures optimal preparation for adhesive application and enhances bond strength.
As a Damp Proof Membrane (DPM): When used as a moisture barrier, the coverage varies based on the required number of coats:
- 1 coat: Covers up to 40–50 m² per 5kg for moderate residual moisture levels.
- 2 coats: Covers up to 20–25 m² per 5kg, offering enhanced protection for subfloors with higher residual moisture levels (up to 3.5 CM%).

Its versatility and economical coverage make it an ideal choice for various subfloor preparation needs.

Specifications

STAUF VPU 155 S 5L Canister

Solvent free polyurethane primer

Special features: damp proof membrane on cement sub floors with residual moisture
very economical
universal use

Application range: damp proof membrane on cement subfloors with residual moisture of max. 3,5 CM-%
primer under STAUF PU-, SPU- and SMP-adhesives
primer under STAUF levelling compounds sprinkled with sand

Suitable subfloors: mastic asphalt screed
concrete C 25 / 30 according to DIN 1045 (non-skid surface)
calcium sulphate (flow) floors (no moisture barrier)
wooden planks, wood fibre boards
chipboards (P4 to P7), OSB boards (OSB/2 to OSB/4)
unlaminated gypsum fibre boards
cement floors

Product properties: suitable on subfloor heating systems
ready for use
solvent-free
creates a dust free surface ready for installation using STAUF polyurethane, SPU or SMP based adhesives
very low emission
STAUF VPU 155 S

Color: honey

Drying time: approx. 30-45 min. at 20 °C; 2nd layer (DPM): approx 2 h at 20 °C

Additional instructions 1: approx. 150 g when applied with roller; 2nd layer (damp proof membrane): approx. 250 g when applied with roller
approx. 150 g when applied with roller; 2nd layer (damp proof membrane): approx. 250 g when applied with roller

Room climate at work site: minimum 15 °C, maximum 75% rel. humidity, preferably max. 65%

Shelf-life: 9 months

Giscode: RU1

Emicode: EC1 plus

Available packaging: 5 kg plastic canister

STAUF VPU 155 S

EXAMINATION OF SUBFLOOR (STAUF VPU 155 S)

Prior to processing, the subfloor must be checked according to the standard DIN 18356, DIN 18365 or corresponding national standards. The subfloor shall be resistant to pressure and tension, free of cracks, must have sufficient surface strength, be permanently dry, level, clean and free of from contaminants that may prevent adhesion, sinter layers etc. In addition, porosity and grip of surface need to be checked. Also check moisture content and absorption of subfloors as well as temperature, air humidity and subfloor temperature. Calciumsulfate (flow) floors and magnesite floors must be permanently dry, cement floors with residual moisture may receive as damp proof membrane by applying the STAUF primer. The maximum admissible residual moisture for cement floors is 3,5 CM-%.

STAUF VPU 155 S

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STAUF VPU 155 S Solvent Free Polyurethane Primer 5kg