Bonding waterproofing membranes or tile adhesives to smooth, non-porous surfaces can be a critical point of failure. Metal flashings, existing glazed tiles, or PVC pipe penetrations demand a primer that locks onto the substrate, ensuring your final system stays put. Gripset OP Primer delivers that reliable adhesion, transforming challenging surfaces into ideal bonding areas for Gripset membranes and tile adhesives.
Gripset OP Primer was developed to overcome the adhesion challenges presented by non-porous, smooth, and difficult-to-bond substrates. As a solvent-free solution, it provides a safer alternative to traditional solvent-based primers, enhancing the performance of Gripset membranes and tile adhesives. This primer creates a textured finish, improving the mechanical key for subsequent layers and ensuring a strong, lasting bond where it's needed most.
Gripset OP Primer is applied neat, without dilution, using a brush or medium nap roller. A single coat is typically sufficient to achieve full coverage. The primer must be fully dry and tack-free before applying Gripset membranes, tile adhesives, or other approved polymer coatings. For optimal adhesion and to prevent surface contamination, apply the top coat shortly after the primer has dried. Tools can be cleaned with water while the product is still wet; once cured, mechanical removal or solvents are required.
This primer is widely specified for critical detailing in waterproofing systems, particularly where non-porous elements are present.
Gripset OP Primer is commonly the first step in build-ups involving non-porous detailing elements. For waste outlets, penetrations, and waterstop angles, it is applied directly to the PVC or metal as the initial layer to ensure maximum adhesion of subsequent membrane layers. In balcony and deck systems, it can follow a porous substrate primer like Gripset GP Primer, specifically applied to metal flashings or other non-porous details within the primed concrete system. This layering ensures every component, regardless of its material, receives optimal surface preparation.
Gripset OP Primer offers a solvent-free alternative designed for non-porous, smooth, and difficult-to-bond substrates, specifically enhancing adhesion for Gripset membranes and tile adhesives. In contrast, for concrete and other porous substrates requiring a general-purpose primer, consider Gripset GP General Purpose Primer. For damp or moisture-affected substrates where a moisture barrier is essential, Gripset E60 provides a two-part epoxy primer solution, designed to tolerate elevated moisture levels.
Yes, Gripset OP Primer is suitable for priming ceramic tiles and natural stone. It provides a textured finish to improve the mechanical key for new tile adhesives or membranes.
No, Gripset OP Primer is not for use over damp substrates or areas with rising moisture. For these conditions, use Gripset E60 for proper priming and moisture management.
No, this primer is not a substitute for a waterproofing membrane. It must be covered with an approved wet area membrane system or tile adhesive to achieve waterproofing in wet areas.
Gripset OP Primer is fast drying, typically ready for over-coating in 30 minutes at 23°C and 50% RH. Apply membranes or tile adhesives shortly after drying to prevent surface contamination.
| Application | Key benefit | Primary trades |
|---|---|---|
| Priming metal flashings and waterstops | Ensures reliable adhesion of Gripset membranes to smooth, non-porous metal surfaces, preventing delamination. | Waterproofers, Plumbers |
| Preparing existing ceramic tiles or natural stone for re-tiling | Provides a strong mechanical key on glazed, non-porous surfaces, allowing tile-over-tile applications without extensive grinding. | Tilers, Renovators |
| Priming rigid PVC components like leak control flanges and pipe penetrations | Promotes robust bond development between PVC and subsequent membranes or sealants, crucial for wet area integrity. | Waterproofers, Plumbers |
| Enhancing adhesion on smooth concrete and compressed fibre cement sheeting | Creates a textured, high-adhesion surface for Gripset membranes and tile adhesives, especially on hard-to-bond substrates. | Builders, Waterproofers, Tilers |
Wear safety shoes, overalls, nitrile rubber gloves (for intermittent contact), and safety glasses. Wash hands before eating, drinking, or using the toilet. Wash contaminated clothing before reuse.
Store and use in a cool, dry, well-ventilated place.
Store in a cool, dry, well-ventilated place, out of direct sunlight and away from incompatible materials. Keep containers closed and check regularly for leaks. Store off concrete floors and avoid freezing conditions. Product has a shelf life of 12 months in an unopened container. Clean tools with water while wet. Once dried, product needs mechanical removal or solvent.
Proper surface preparation is critical for Gripset OP Primer to achieve its full adhesion properties on challenging substrates.
Surface prep: Ensure surfaces are clean, sound, smooth, and dry. Remove all loose material, dirt, dust, oil, grease, wax, and other contaminants. Structurally unsound layers require mechanical removal.
Primer: Required. Apply one neat coat for enhanced adhesion of Gripset membranes.
Surface prep: Clean, sound, and dry, free from laitance, curing compounds, or release agents. Address masonry defects by pointing flush and filling voids or non-structural cracks. Not for damp or moisture-prone concrete; use Gripset E60 instead.
Primer: Required on smooth, non-porous concrete. Apply one neat coat to improve mechanical key.
Surface prep: Thoroughly clean to remove all dirt, grease, wax, and surface contaminants. Ensure the surface is dry and free from loose grout or existing coatings that may compromise adhesion.
Primer: Required for tile-over-tile applications. Apply one neat coat to provide a textured bonding surface.
Surface prep: Ensure sheeting is clean, dry, and free from dust, oils, or residues from manufacturing or installation. Boards must be installed according to manufacturer's recommendations.
Primer: Required. Apply one neat coat for reliable adhesion of membranes or tile adhesives.
Surface prep: Clean PVC surfaces thoroughly to remove any release agents, plasticisers, dirt, or grease. Ensure surface is dry.
Primer: Required. Apply one neat coat to secure membrane or sealant bonds around penetrations.
| Property | Value |
|---|---|
| Form | Viscous liquid |
| Colour | Blue |
| Specific Gravity (20 °C) | 1.3 |
| pH | 8 |
| Final Drying Time | 30 minutes |
| Minimum Coverage | 1 litre/10m² (on smooth, non-porous surfaces) |
| VOC Content | Low VOC |
| Shelf Life | 12 months in unopened container |
| Recommended Storage | Room temperature, off concrete floors, avoid freezing and direct sunlight |
Here are some common examples on where Gripset OP Primer used by our customers.
