Primer & Accessories
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The foundation for permanently secure bonds
When do I need primer – and which one?
Primers improve the adhesion of adhesive tapes on absorbent, porous or difficult substrates. On smooth substrates such as timber or PE film, primer is usually not required. On calcium silicate blocks, porous concrete, wood fibre boards or mineral plaster surfaces, primer determines the long-term success of the bond.
Tescon Sprimer
Sprayable primer for timber, wood fibre boards, masonry and floor slabs. Short drying time, then bond with pro clima adhesive tapes. In 400 ml and 750 ml. From EUR 10.33.
To Tescon Sprimer → Liquid, no wait – pro clima ★Tescon Primer RP
Solvent-free primer with no drying time – apply primer and bond immediately with pro clima tape. Dispenser bottle 1 l (EUR 20.90) or 2.5 l can (EUR 41.50, more economical per litre).
To Tescon Primer RP → For Targo tapesTargo PRIMER M
High-performance primer for absorbent, porous, sandy and rough substrates – for acrylic and butyl adhesive tapes (Targo system), indoor and outdoor. 500 g can. EUR 18.90.
To Targo PRIMER M →All products compared
Sprimer or Primer RP – what is the difference?
| Product | Form | Drying time | Compatible with | Price |
|---|---|---|---|---|
| Tescon Sprimer 400 ml ★ | Spray bottle | Short wait required | pro clima tapes (Tescon Vana, Orcon F…) | EUR 10.33 |
| Tescon Sprimer 750 ml ★ | Spray bottle | Short wait required | pro clima tapes | EUR 17.09 (more economical/ml) |
| Tescon Primer RP 1 l ★ | Dispenser bottle | None – bond immediately | pro clima tapes | EUR 20.90/l |
| Tescon Primer RP 2.5 l | Can | None – bond immediately | pro clima tapes | EUR 41.50 (EUR 16.60/l) |
| Targo PRIMER M 500 g ★ | Can | Fast-drying | Targo tapes (RAPID, ULTRA, FLEX…) | EUR 18.90 |
| Pressfix ★ | Pressing aid | — | All standard building adhesive tapes | EUR 0.80 |
| Brush bottle 500 ml | Application tool | — | WELDANO TURGA welding compound | EUR 25.90 |
| Rollfix pressure roller | Pressing tool | — | SOLITEX WELDANO membranes | EUR 49.50 |
The underestimated step
Pressing tape correctly – why Pressfix makes sense
Even pressure across the width
Tape holds only as well as it has been pressed. Uneven finger pressure creates variably bonded tape – the soft plastic of Pressfix presses evenly across the full width of the tape.
No bubbles, no folds
The soft plastic adapts to unevenness and pushes air out. The result is a clean, bubble-free bond with no potential leak points.
EUR 0.80 – the most economical quality factor
Pressfix costs 80 cents and is the cheapest way to measurably improve the quality of every bond. For an airtightness project that needs to pass a blower-door test, it is indispensable.
When primer is really needed
No primer on smooth timber – always on calcium silicate
The rule of thumb: the more absorbent, rougher or dustier the substrate, the more important primer is. On clean timber, OSB and PE film, primer is generally not required. On calcium silicate blocks, aerated concrete, wood fibre boards or old mineral surfaces it is decisive – a bond without primer on such substrates rarely holds in the long term. When in doubt: primer costs little and saves a great deal in the event of damage.
Frequently asked questions
Frequently asked questions about primer and accessories
What is the difference between Tescon Sprimer and Tescon Primer RP?
Tescon Sprimer is a sprayable primer with a short drying time – after spraying, wait briefly then apply the tape. Tescon Primer RP is solvent-free with no drying time – tape can be applied immediately after the primer. Primer RP is ideal when no waiting time is possible on site.
Do I always need primer with adhesive tapes?
No. On clean, smooth substrates such as timber, OSB and PE film, primer is generally not required. On absorbent, porous or dusty surfaces such as calcium silicate blocks, aerated concrete or wood fibre boards it significantly improves adhesion – always prime here.
Can I use Tescon Sprimer with Targo tapes?
No. Tescon Sprimer and Primer RP are developed for pro clima tapes. For Targo tapes (RAPID, ULTRA, FLEX), Targo PRIMER M is the system-compatible solution. The system guarantee only applies with the matching primer.
What is Pressfix and how is it used?
Pressfix is a small pressing aid made of soft plastic for EUR 0.80. After applying the tape, Pressfix is drawn across the tape with even pressure – the entire adhesive surface is pressed uniformly with no bubbles or weak spots.
For which substrates is primer particularly important?
Calcium silicate blocks, aerated concrete, lightweight concrete, wood fibre boards, mineral plaster surfaces and old concrete. On these absorbent or rough substrates, tape without primer is drawn into the surface and loses adhesion. Primer seals the pores and creates an even bonding surface.
What is the brush bottle for?
The brush bottle (500 ml) is a specialist tool for the WELDANO TURGA welding compound used for welding SOLITEX WELDANO membranes together. It allows one-handed working and even application of the welding compound along the seam.
Ensure optimum adhesion
Choose the right primer now.
Tescon Sprimer (spray), Primer RP (immediate) or Targo PRIMER M – for every substrate and system.