Kestopur 1050
1-component polyurethane adhesive

Kestopur 1050 is a one-part, moisture curing PU-adhesive for production of engineered wood products. It complies with the requirements of EN 15425 norm and is approved for manufacturing of CE-labelled glulam according to EN 14080.

Special features

  • Fiber reinforced
  • Low foaming
  • Non-sagging




Kestopur 1050 is a 1-component, moisture curing PU-adhesive for jointing of wooden materials. It complies with the requirements of EN 15425 and is approved for manufacturing of CE-labelled glulam according to EN 14080, manufacturing of CE-labelled finger jointed wood according to EN 15497 and CE-labelled CLT (cross laminated timber) according to EN 16351.

It can also be used for manufacturing other engineered wood products and applications that require unexceptionally good moisture resistance.

Kestopur 1050 is solvent- and formaldehyde-free. Complies with M1-emission classification for building materials.

Package Size Product Code
Kestopur 1050 220kg/200 l T3148.200
Kestopur 1050 Fluid cont T3148.995


Density/specific weight

approx. 1.2 kg/dm³


Transparent, light after drying. Contains indicator visible under UV light.


Approx. 10,000 mPas (Brookfield RVT, 5/20, 20 °C)

Open time

max. 20 min
(amount applied 180 g/m², 15 % wood moisture, temperature 20 °C, RH 50 %)

Classifications and certificates

EN 15425 I 70 GP 0,3
AUS/NZ 4364:2010 type I


140–180 g/m² finger jointing
160–200 g/m² face jointing

Pressing time

From 60 min when face jointing

Working conditions

Temperature in the hall at least 15 °C (according to EN 14080; EN16351; EN 15497)

Application temperature

18 – 30 °C (according to EN 14080; EN16351; EN 15497)

Air humidity

During gluing 40 – 75 % and after pressing ≥ 30 % (according to EN 14080, EN 16351)

Wood moisture content

6 – 20 % (we recommend approx. 15 % humidity)


Can be stored in a dry and cool place (+10–20 °C). If stored in an unopened original package at +20 °C, the shelf life is 4 months for 1000 l containers and 6 months for smaller packages.

Instructions for use

The surfaces to be bonded must be clean and dust-free. Suitable for nozzle and ribbon application. Apply the adhesive in an even layer one or two-sided. In order to determine the necessary pressing time and ensure the adhesive joint strength, adequate tests are to be carried out before use in full-scale production.

Use safety gloves when using Kestopur 1050 adhesive. Wear a breathing mask if spraying the glue and working in temperature above +40 °C.

Remove fresh adhesive stains with a dry cloth and clean the surfaces with acetone or Kiilto Cleaner 307. Hardened adhesive can be removed only mechanically.

Additional information

The information given in this product data sheet is based on our tests and our practical knowledge. The technical data is defined in standard conditions. Variations in local working conditions will affect the product performance and result. The result is also strongly affected by working methods. We guarantee the high quality of our products according to our Quality Management System. No liability can be accepted from incorrect use of the product or prevailing conditions, over which we have no control. Thus, we cannot be held responsible for the final result. The user of the product must test the product’s suitability for the intended application.

Environment and safety

Avoid unnecessary skin contact and exposure with the fresh product, use safety gloves. Refer to material safety data sheet. For information on product and package disposal, visit

M1 emission classification for building material
EN 15425
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