YTM Primer – Liquid Adhesive Primer
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YTM Primer – Liquid Adhesive Primer
A fast-drying butyl rubber liquid adhesive that bonds YTM corrosion protection tapes to steel – the first layer of every YTM tape coating system.
What is the YTM Primer?
YTM Primer is a liquid butyl rubber adhesive used with YTM corrosion protection tapes on buried and submerged pipes, fittings and metallic installations with operating temperatures up to 70 °C.
Applied by brush or roller on the prepared steel, it smooths surface irregularities and creates a strong bond between the tape adhesive and the substrate. It complies with EN 12068 Class C50 when used with the YTM 3-Ply Tape Coating System.
Key features and benefits
- Butyl rubber based adhesive
- Fast drying – 5 to 10 min at 23 °C
- Ensures tape bond to steel
- Smooths surface irregularities
- Coverage approx. 8 m² per litre
- Shelf life 3 years
Applications
- Primer for the YTM 2-Ply Tape Coating Systems (AWWA C214, BGD-KG, standard grades)
- Primer for the YTM 3-Ply Tape Coating System EN 12068 C50
- Under YTM Butyl Rubber Mastic at welds and fittings
- Steel, ductile iron and concrete substrates
Storage and safety
- Store in closed original cans at −15 to +50 °C, away from heat and direct sunlight.
- Highly flammable (flash point 5 °C) – no open flames, sparks or smoking; ensure good ventilation.
- Wear gloves and eye protection; avoid inhaling vapours.
- Read the Safety Data Sheet before use; keep cans closed when not in use.
Technical data
| Technical characteristic | Unit | Value | Test method |
|---|---|---|---|
| Colour | — | Black | — |
| Solid contents | % | 29 | ISO 1515 |
| Flash point | °C | 5 | ASTM D93 |
| Density | g/cm³ | 0,93 | EN 12068 |
| Drying time (23 °C) | min | 5–10 | ASTM 1298 |
| Shelf life | years | 3 | — |
| Application temperature | °C | −5 to +40 | — |
| Max. operating temperature | °C | −34 to +70 | — |
| Storage temperature | °C | −15 to +50 | — |
Values are typical. Full data in the Technical Data Sheet Download the technical data sheet.
Surface preparation
- Remove rust, dirt, weld spatter, oil and grease; the surface must be clean and dry.
- Prepare steel to St 2 by wire brush or Sa 2 – Sa 2½ by blast cleaning (ISO 8501-1).
How to apply
- CleanWire-brush off rust, dirt and weld spatter; remove oil, grease or test gel with a solvent such as white spirit.
- PreparePrepare steel to St 2 by wire brush or Sa 2 – Sa 2½ by blast cleaning (ISO 8501-1).
- PrimeApply uniformly by brush or roller within 8 hours of preparation, avoiding dots, spots and other defects.
- WrapWhen touch-dry but still tacky (typically 5–10 min), apply the YTM inner tape.
Supply and packaging
| 5 L can | 4 cans / carton · 480 L / pallet |
|---|---|
| 10 L can | 1 can / carton · 450 L / pallet |
| Coverage | ≈ 8 m²/L (full pipe surface) |
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Frequently asked questions
How long should the primer dry before taping?
Typically 5–10 minutes at 23 °C. Apply the inner tape while the primer is touch-dry but still tacky.
How much primer do I need?
About 8 m² per litre – e.g. roughly 0,45 L per 10 m of DN 100 pipe or 1,27 L per 10 m of DN 300 pipe.
How soon after surface preparation must it be applied?
Within 8 hours of surface preparation, to avoid flash rust and contamination.
Is the primer flammable?
Yes – it is solvent based with a flash point of 5 °C. Keep away from open flames and sparks, ensure ventilation and read the Safety Data Sheet.
Which tapes is it used with?
All YTM PE/butyl tape coating systems. The YTM Primerless Anti-Corrosion Tape does not require primer.
Need YTM Primer – Liquid Adhesive Primer for your project?
Contact YTM Makina for technical support, project-specific requirements and a quotation – [email protected] · +90 542 306 40 43.