Stopgap P121 Acrylic Primer 5L Anhydrite Blue Primer
For Calcium Sulphate Screeds
F. Ball STOPGAP P121 is a blue acrylic floor primer designed specifically for calcium sulphate and anhydrite screeds. It promotes the application of STOPGAP smoothing compounds while helping prevent excessively rapid drying of adhesives and levelling products. Quick-drying, non-flammable and suitable for underfloor heating, P121 provides clear coverage control and reliable professional subfloor preparation.
- Product Code: F12105
- Availability: In Stock Delivery: 1-3 days
- Brand: Ball
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£34.68/bottle
- Ex. VAT: £28.90/bottle
| Specification | |
| Type | Acrylic Primer |
| Colour | Blue |
| Drying time | 15–30 Minutes First Coat / Approx. 30 Minutes Second Coat |
| Shelf Life | 12 Months |
| Coverage | Approx. 10m² per Litre |
| Emission Rating | EMICODE EC1 PLUS |
| Non-Flammable | Yes |
| Suitable Subfloors | Calcium Sulphate & Anhydrite Screeds |
| Size | 5L |
| Installation | |
| Application Method | Roller / Brush |
| Underfloor heating | Suitable |
| General info | |
| Condition | New |
| Est. delivery | in 1-3 days |
| Categories: | Flooring Accessories | Adhesives & Primers | | |
| Extras | |
| 1 order = 1 tree planted Shop now! madeofwood.uk/ecologi |
Frequently Asked Questions (FAQs)
What surfaces can this acrylic primer be used on?
It can be applied to most common flooring substrates to prepare them for levelling compounds.
How should the primer be applied for best results?
Use a roller or brush to ensure an even, consistent coat across the surface.
Is this product suitable for both professionals and DIY users?
Yes, it is designed for easy use by both trade professionals and home renovators.
How much area does one 5-litre container cover?
A 5-litre container covers up to 50 square metres, depending on the surface.
Will this primer help improve the finish of floor coverings?
Yes, it helps create a smooth, well-bonded base for a flawless flooring finish.



