Schluter Systems PRMU1 Universal Primer, 1 Gallon – Interior Bonding Agent for Mortar and Floor Tile
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Schluter Systems PRMU1 Universal Primer, 1 Gallon – Interior Bonding Agent for Mortar and Floor Tile

Schluter Systems PRMU1 Universal Primer, 1 Gallon – Interior Bonding Agent for Mortar and Floor Tile

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Schluter Primer-U Universal Water-Based Primer - Ideal for Hard-to-Bond Surfaces, Ensures Reliable Bond for Schluter Set and Fast-Set Mortars - Ready to Use, Low Odor, 1 Gallon - PRMU1

Price:
$100.29 CAD $90.26 CAD

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For Bulk Pricing and Contractor Discounts, Please Contact Us!

24 Jun. Estimated arrival
21 Jun. Order placed
22-23 Jun. Order dispatches
24 Jun. Delivered!

Description

Product Features:

  • Superior Adhesion - Ensures superior adhesion of Schluter thin-set mortars on demanding floor and wall surfaces, providing a reliable and lasting bond.
  • Wide Compatibility - Ideal for use on various challenging surfaces such as gypsum underlayment, existing tile, terrazzo, steel, adhesive residue, concrete, and more.
  • Easy Clean-Up - Designed for effortless maintenance and to extend the life of your tools. Just rinse rollers or brushes with water while the primer is still wet. Enjoy simple cleanup and keep your tools performing like new.
  • Quick Drying - Dries in just 15-60 minutes, allowing you to complete your projects efficiently and quickly. Ideal for time-sensitive tasks, ensuring minimal downtime and faster results.
  • User-Friendly Application - Features a ready-to-use formula, this primer can be easily applied with a roller, brush, or sprayer, ensuring smooth and efficient use for all users.
  • Premium universal primer for bonding mortar to interior substrates
  • Enhances adhesion on both absorbent and non-absorbent surfaces such as concrete, gypsum, wood, and existing tile
  • Ideal for use with thin-set mortars, including Schluter SET, ALL-SET, and FAST-SET
  • Compatible with uncoupling membranes, waterproofing membranes, and radiant floor heating systems
  • Reduces surface absorption to prevent premature drying of mortar
  • Fast-drying, low VOC, water-based formula—safe for indoor residential or commercial use
  • Easy application with roller or brush; ensures smooth, uniform primer coat
  • Perfect for use in bathrooms, kitchens, laundry rooms, and interior floor and wall tiling projects
  • Helps prevent mortar failure and tile delamination
  • Made by Schluter Systems, a trusted brand in professional tile installation products
  • Ideal for use with Schluter SET, ALL-SET, and FAST-SET thin-set mortars, and Schluter underlayments such as Schluter-DITRA and DITRA-HEAT
  • Ready-to-use, single-coat application with roller or broom
  • One-component, solvent-free, water-based acrylic formulation
  • Low odor and zero-VOC
  • Freeze/thaw stable

Product Description:

Schluter-PRIMER-U is a ready-to-use, one-component, solvent-free, 100% acrylic, water-based primer. It is used to ensure excellent adhesion when applying Schluter thin-set mortars to difficult-to-bond-to surfaces such as gypsum underlayment, raised access panels, and existing tile. PRIMER-U is suitable for use with Schluter SET, Schluter ALL-SET, and Schluter FAST-SET in interior applications where increased adhesion is required over various porous and non-porous substrates. PRIMER-U is a translucent orange liquid that dries to a slightly glossy film approximately 15-60 minutes after application. PRIMER-U provides a strong bond to gypsum underlayment, concrete, existing tile, glass, plywood and OSB subfloor panels, terrazzo, steel, VCT flooring, well-bonded flooring adhesive residue, and latex paint

The Schluter Systems Universal Primer is a high-performance bonding agent engineered for interior surface preparation in tile and stone installations. Designed to improve adhesion between substrates and mortar, this premium universal primer ensures reliable and long-lasting tile bonding over challenging surfaces. Suitable for use over absorbent and non-absorbent substrates, including concrete, gypsum, wood, existing tile, and vinyl, this water-based primer creates a solid foundation for thin-set mortar application in both residential and commercial interior environments. It significantly reduces the risk of delamination, enhances surface coverage, and speeds up installation timelines by minimizing substrate porosity. Ideal for use with Schluter thin-set mortars, uncoupling membranes, and floor heating systems, the primer is easy to apply using a brush or roller, dries quickly, and is low in VOCs for safer indoor use. Whether you're working on a bathroom renovation, kitchen backsplash, or heated floor system, this universal bonding primer delivers dependable performance across a wide variety of tile installation scenarios.

Schluter-PRIMER-U is a ready-to-use, one-component, solvent-free, 100% acrylic, water-based primer.It is used to ensure excellent adhesion when applying Schluter thin-set mortars to difficult-to-bond-to floor and wall surfaces such as gypsum underlayment, raised access panels, and existing tile. For floor surfaces these include gypsum underlayment, raised access panels, and existing tile. For wall surfaces, this includes suitable solid backing.

PRIMER-U is suitable for use with Schluter SET, Schluter ALL-SET, and Schluter FAST-SET in interior applications where increased adhesion is required over various porous and non-porous substrates.

PRIMER-U is a translucent orange liquid that dries to a slightly glossy film approximately 15 - 60 minutes after application. PRIMER-U provides a strong bond to gypsum underlayment, concrete, existing tile, glass, plywood and OSB subfloor panels, terrazzo, steel, VCT flooring, well-bonded flooring adhesive residue, and latex paint.

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