Primer Emulsion EG
Primer for mineral substrates, securing adhesion of the system before the HYDRONYLON HN top coat.
Prices
| Pack | Retail price |
|---|---|
| 5 kg | £14.30 |
HYDRONYLON Approved Contractors buy at preferential trade rates.
HYDRONYLON LTD is not currently registered for VAT, so no VAT is charged - the prices shown are the final prices payable.
Where it fits in the system
Primer Emulsion EG prepares mineral substrates, such as concrete, for the system. It is applied at 0.25 kg/m² and the build-up is completed with the HYDRONYLON HN top coat at a minimum of 1.5 kg/m².
How the system worksTechnical parameters
| Role in the system | Primer on mineral substrates |
|---|---|
| Pack size | 5 kg |
| Consumption | 0.25 kg/m² |
| Interval before top coat | Min. 24 h |
| Application conditions | +10°C to +35°C around the clock, relative humidity up to 85% |
| Storage | +5°C to +30°C; use within 30 days of opening |
System performance (ETA-23/0735)
| External fire performance | B(roof)(t1) |
|---|---|
| Reaction to fire | Class E |
| Watertightness | Watertight |
| Wind load resistance | Pass (> 50 kPa) |
| Working life category | W2 (10 years) |
| User load category | P3 (Normal) |
| Roof slopes | S1 to S4 |
| Surface temperature range | -20°C (TL3) to +80°C (TH3) |
| Minimum dry film thickness | Felt 1.8 mm, metal 0.7 mm, mineral 0.75 mm, PVC 1.2 mm |
| Notified Body | No. 1454 (Łukasiewicz - Warsaw Institute of Technology) |
Coverage
- Allow 0.25 kg/m² on mineral substrates.
- Example: a 50 m² mineral roof needs 12.5 kg, which is three 5 kg buckets.
- Complete mineral build-up materials cost: £18.48/m² (materials only; Primer Emulsion EG 0.25 kg and HYDRONYLON HN 1.5 kg per m²).
Application notes
- Apply at +10°C to +35°C around the clock, at relative humidity up to 85%; never on wet or frozen substrates or during rainfall.
- Apply at 0.25 kg/m² on mineral substrates.
- Allow a minimum of 24 h before applying the HYDRONYLON HN top coat.
- Mix before use and do not dilute. Clean tools with warm water and detergent.
Downloads
- Retail price list 2026 (PDF)
- European Technical Assessment ETA-23/0735 (PDF)
- UK Declaration of Performance 2026 (PDF)
- Primer Emulsion EG technical data sheet (PDF): available soon.
Frequently asked questions
When do I need Primer Emulsion EG?
Primer Emulsion EG is used on mineral substrates, such as concrete, before the HYDRONYLON HN top coat is applied. It secures adhesion of the system to the substrate.
How much Primer Emulsion EG do I need?
Allow 0.25 kg/m². A 50 m² mineral roof needs 12.5 kg, which is three 5 kg buckets.
Can Primer Emulsion EG be diluted?
No. Mix the product before use and apply it undiluted, at temperatures between +10°C and +35°C and relative humidity up to 85%. Clean tools with warm water and detergent.