SpecMeasureProduct quantity calculator

Substrate preparation calculator

Floor primer calculator

Estimate floor primer quantity using the measured area, selected substrate, product coverage and the permitted dilution ratio.

Primer

Prime Plus

Concentrated primer with selectable product-to-water dilution and substrate-specific preparation guidance.

Primeplus 5 litre bottle
✓ Data checked 24 Aug 2026
Primer details
Undiluted — primer only

One 5 L tub produces 5 L of mixed primer and covers approximately 70 m² on the 70 m² undiluted basis. Confirm absorption and dilution against the current technical data sheet; carry out a water-drop test before application.

Calculation basis5 L undiluted coverage: 70 m² · selected coverage: 70 m²

Quantity result

2tubs

Includes 10% wastage

Primer concentrate
5.2 L
Concentrate with wastage
5.7 L
Water to add
0 L
Mixed volume
5.7 L
Coverage per tub
70 m²
Pack size
5 L
Undiluted — primer only · approximately 70 m² per 5 L tub

Estimate only. Confirm suitability and current guidance in the manufacturer's technical data sheet.

How it works

How to use this calculator

Choose the product you intend to use, enter the measured project information and review the estimated pack quantity. SpecMeasure applies the selected product's coverage information and your chosen wastage allowance.

  • Enter the area to be primed.
  • Choose the actual substrate.
  • Select the product and permitted dilution.
  • Include wastage for the surface and application method.

Plan more accurately

What affects the estimate?

Real-world consumption varies with the substrate, application method and installation conditions. Check these factors before ordering:

  • Porous substrates can require more material or repeat coats.
  • Dilution rules vary by substrate and product.
  • Roller, brush and spray application have different losses.
  • Dust, contamination and poor preparation affect performance.