Fosroc Primer No. 21 250ml
Fosroc Primer No. 21 250ml is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
We offer in-house delivery for local orders to ensure fast and reliable service. For orders outside our delivery areas, we can arrange freight through our trusted partners. If you have specific delivery requirements or need a custom freight solution, our team is happy to assist — just let us know when requesting your quote.
Fosroc Primer No. 21 250ml
Description
Description
Fosroc Primer No. 21 is a single-component, solvent-based polyurethane primer used to prepare dry concrete joints prior to the application of Nitoseal polyurethane sealants, including Nitoseal PU250 and PU400.
Supplied in a convenient 250ml container, Primer 21 is ideal for smaller jobs or touch-up applications. It promotes excellent adhesion to dry, clean concrete surfaces and is not recommended for areas subject to long-term dampness or permanent immersion—Fosroc Primer 13 should be used in those conditions.
Its fast-drying formula speeds up jobsite productivity, and the single-component design requires no mixing before use.
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Volume: 250ml
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Type: Solvent-based polyurethane primer
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Application: Dry concrete joints before applying Nitoseal PU250 or PU400
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Key Features:
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Fast drying for minimal downtime
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No mixing required – ready to use
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Ideal for dry conditions (not for immersed/damp surfaces)
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Compact size for small-scale or precision applications
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Payment & Security
During this time, online payments are unavailable. Customers can request a quote, and our sales team will contact you to confirm your order and arrange payment.
