Rust-Oleum 5421 Epoxy Floor Primer Rapid is a fast curing primer for use on new or untreated porous mineral surfaces, like concrete to bind weak and friable substrates - can be overcoated with any Rust-Oleum Mathys epoxy floor paint or polyurethane coating.
Overcoatable after just 4 hours: apply primer and topcoat in one day
Rust-Oleum 5421 Epoxy Floor Primer Rapid is a rapid curing 2-component solvent-free epoxy impregnation primer for concrete floors.
Rust-Oleum 5421 Epoxy Floor Primer Rapid has excellent penetration properties and binds weak and friable surfaces. The recoating time of only 4 hours allows application of primer and topcoat in one day and it's high layer thickness makes it ideal for uneven surfaces.
Rust-Oleum 5421 Epoxy Floor Primer Rapid is for use on new or untreated porous mineral surfaces, like concrete. It can be used in combination with other epoxy floor paints and polyurethane coatings.
Features & Benefits
Improves adhesion
100% solids
Binds brittle surfaces
Low odour
Rapid curing
High layer thickness
Technical Data
Density: 1,1
Gloss Level: Gloss
Solids content in volume: 100 %
Solids Content in weight: 100 %
Mixing Ratio: Base : Activator = 3.3 : 1.7 (Volume)
Drying Times At 20°C/RH 50%
Touch dry: 2 hours
Dry to handle: 3 hours
Dry to recoat: 4 hours
Fully cured: 2 days
Pot Life: 30 minutes (do not leave in mixing can)
Theoretical Consumption
10 m²/l
Practical Consumption
Practical coverage depends on many factors such as porosity and roughness of the substrate and material losses during application.
Surface Preparation
New concrete should cure and dry for at least 30 days prior to the application of the product. Remove oil, grease and all other surface contaminations by alkaline or high pressure- (steam) cleaning in combination with appropriate detergents. Remove all laitance, loose or unsound concrete by vacuum-blasting or etching with Rust Surfa-Etch 108 Etching Solution. Remove concrete curing compounds completely. Large surfaces should preferably be prepared by abrasive blasting (vacuum blasting) or flame cleaning. Profile maximum 0,5 mm
Temperature of air and substrate between 10 and 35°C and relative humidity below 85%. The substrate temperature must be at least 3°C above dew point.
Please contact Rawlins Paints' Technical Support Team on 0113 2455450 for more information.
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
Rust-Oleum 5421 Epoxy Floor Primer Rapid is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
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