PR-PU PU Primer Activator

Description

PR-PU PU Primer Activator

PR-PU Primer allows adhesives and other polyurethane coatings, to obtain high adhesion between the substrate and the coating on top, so that there is a chemical anchorage between both elements. Even though PR-PU Primer is a product that by itself does not offer any film formation or any mechanical properties, (so it is definitely not a product to be used on its own), it does provide extreme adherence in combination with polyurethane single component products.

In most circumstances, polyurethane resins, thanks to their chemical cross linking (as opposed to physical curing water based products), provide excellent adhesion to substrates. However, the very high cohesion of these polymers, may contribute to a lack of adhesion and eventual failure on difficult substrates such as metals or non-porous ceramics. Some substrates tend to offer more resistance to adhesion than others; tiles, metals, brick, terrazzo, marble, ceramics, old/polished concrete, glass, stainless steel, old flooring surfaces.

In these circumstances, if it is possible, it is recommended to scratch the surface slightly, creating some friction, and favouring the adhesion and compatibility between materials.

PRIMARY APPLICATIONS
– Waterproofing Membranes: Establishes strong adhesion between the substrate and waterproofing layers.
– Floorings: Enhances the bond of polyurethane floor coatings to the substrate.
– Adhesives: Improves adhesive properties of polyurethane-based adhesives.
– Polyurethane Coatings: Ensures strong chemical anchorage for durable performance.

PACKAGING KITS
– 1L: Packaging

COVERAGE
Scrub or spray the surface, applying 50-100 g/m²
*Note: Coverage figures are theoretical. Practical coverage rates may vary due to wastage factors, site conditions, profile, and porosity of the substrate.

APPEARANCE
– Yellow Liquid

APPLICATION CONDITIONS
– Optimum ambient temperature range: 15°C-25°C
– Use localised heating (electric warm air blower) or cooling equipment outside this range to achieve ideal temperature conditions.
– The substrate and uncured floor must be kept at least 3°C above the dew point to reduce the risk of condensation or blooming on the surface, from before priming to at least 48 hours after application.

PRODUCT??APPLICATION
1. Surface Preparation: Slightly scratch the surface to create friction before applying the PR-PU Primer.
2. Mixing: Mix the primer thoroughly before application.
3. Application: Apply by roller or sprayer. Ensure the primer is applied immediately in a thin, continuous film.
4. Porous Surfaces: On porous surfaces, PR-PU Primer will be absorbed quickly; ensure enough primer is used for complete surface sealing.

PR-PU Primer is essential for achieving high adhesion and long-lasting performance in various polyurethane coating applications.

Safety: It’s important to use resin in a well-ventilated area and wear appropriate safety gear, such as gloves and eye protection, due to its fumes and potential skin irritants. Proper safety measures are essential when working with resin.