Platform P360 Universal Alkali Resistant Primer for Underlayments - 1 Gallon
Platform P360 is a fast-drying, alkali-resistant primer that delivers exceptional bond strength on porous and non-porous substrates for self-leveling underlayment installations.
Brand: Platform Performance
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Platform P360 Universal Alkali Resistant Primer: Underlayment Bonding Primer
Platform P360 Universal Alkali Resistant Primer is a high-performance bonding primer engineered to deliver exceptional adhesion for self-leveling underlayments across a wide range of flooring substrates.
Its advanced polymer formulation creates a durable bond on both porous and non-porous surfaces, making it suitable for concrete, epoxy terrazzo, ceramic tile, gypsum, steel pan, existing patching compounds, and approved adhesive residues. The high-solids formula provides outstanding coverage while allowing economical dilution up to 3:1 with water.
Unlike conventional primers, Platform P360 offers prolonged resistance to highly alkaline conditions up to pH 14, ensuring reliable long-term performance even in demanding environments. Its fast-drying properties allow self-leveling underlayments to be installed within 45 to 90 minutes, helping contractors complete projects more efficiently.
With its low odor, low-VOC formulation and broad substrate compatibility, Platform P360 is an ideal primer for residential, commercial, and industrial flooring installations where dependable bond strength and productivity are essential.
Key Features and Benefits
- Universal Substrate Compatibility
Provides exceptional adhesion on both porous and non-porous surfaces, including concrete, epoxy, terrazzo, ceramic tile, and existing leveling compounds - Fast Drying Formula
Ready for self-leveling underlayment application in just 45–90 minutes, helping speed up project completion - Outstanding Bond Strength
Advanced polymer technology promotes superior adhesion for reliable underlayment performance and long-term durability - Alkali Resistant Technology
Engineered to withstand prolonged exposure to highly alkaline environments up to pH 14 - Excellent Coverage
High-solids formula allows dilution up to 3:1 (water to primer), providing coverage of approximately 800–1,200 sq. ft. per gallon - Low Odor and Low VOC
Ideal for residential and commercial applications where indoor air quality is important - One Primer for Multiple Applications
Reduces the need for multiple specialty primers, simplifying inventory and jobsite preparation
Mixing
To address any settling, mix P360 briefly with a low speed (300 rpm) mixer and paint paddle to ensure all contents are homogenous (typically 30 seconds). Use full strength as directed. When specific substrates require the dilution of P360, mix again after diluted to the desired ratio with low speed mixer (typically 1 min). Remix diluted material if it sits more than 24 hours.
Material Application
Substrates can be tested for absorbency onsite. Place a bottle-capful of clean water on the substrate, if it readily disappears into the substrate, substrate is absorbent.
Absorbent Substrates
(Typically concrete, gypsum); Dilute P360 3:1 (water:primer). Ensure the substrate stays wet for at least 15 minutes. Substrates that "flash dry" may require additional dilution, or other remedial actions. If substrate does not stay wet at least 15 minutes, contact Platform Technical Support. Gypsum substrates tend to be very absorbent and may require additional dilution. In many cases gypsum requires primer dilution of 6:1 (water:primer) or even 10:1 to maintain desired wet surface for 15 minutes.
Once diluted, use a fine tip push broom to spread P360 back and forth, working it into the surface to ensure penetration into the pores of the substrate. Avoid allowing the material to puddle, rather spread any puddles uniformly across the surface. Some highly porous surfaces may require an additional primer coat (primer effectiveness can be water tested with a capful of water after it has dried).
Non-Absorbent Substrates
(VCT, Adhesive Residues, Cement Terrazzo, Moisture Membranes, Epoxy). Apply undiluted Platform P360 with a 3/8" nap paint roller or dual-cage roller. Spread to ensure the entire surface is covered with a thin, even film, avoiding puddling. If material puddles, spread uniformly across substrate. Not for use over water soluble adhesives or pressure sensitive adhesives. In those cases, remove adhesive prior to priming.
Double prime all wood substrates with P360 NEAT. Spread to ensure the entire surface is covered with a thin, even film, avoiding puddling. If material puddles, spread uniformly across substrate. Ensure the first coat of primer dries completely prior to installing the second coat of primer.
Dry Time
Ambient conditions (temperature, humidity, air movement) will impact dry time. P360 typically dries in 45 minutes to 90 minutes. Roll out to a uniform film with no ridges or primer build. Areas must be re-primed if more than 48 hours passes since P360 application, or in the case of contamination by dust or foreign material.
| SKU | PP PLATFORM P360 |
|---|---|
| Non-Returnable | No |
| Manufacturer | Platform Performance |
| Manufacturer Part Number | PLATFORM P360 |
