Kestopur 203/15 green is a 2-component polyurethane adhesive for the gluing of metal, wood and insulation materials, as well as fiber composites in sandwich panel constructions for the transportation industry.

Special features

  • Suitable for machine application with multicomponent systems 
  • Strong
  • Durable




Kestopur 203/15 green gives a strong, yet an elastic bond. Ideal for automatic application. Special characteristics of the adhesive is its tough grip on metal surfaces and lower viscosity than normally with Kestopur-adhesives. Suitable for e.g. gluing of metals, wood, insulation materials and fiber composite. Used in conjunction with Kestopur 200/S hardener.



Density/specific weight

Resin: 1.6 g/cm³, hardener: 1.2 g/cm³

Lap shear strength

SS-SS 9 N/mm², Al ≥ 5 N/mm² (28 d 23 °C, 50 % RH)

Tensile strength

7 N/mm² (DIN 53504)

Elongation at break

25 % (DIN 53504)


Shore D 50

Mixing ratio

5 weight part Kestopur 203/15 green resin + 1 weight part Kestopur 200/S hardener


Resin: approx. 13.000 mPas, Hardener: approx. 250 mPas (Brookfield RVT +20 °C)

Mixture viscosity

approx. 5000 mPas (Brookfield RVT +20 °C)

Mixture colour


Pot life

approx. 15 min (120 g, 20°C, 50 % RH)

Open time

max. 40 min (23 °C, RH 50 %)


150–500 g/m² depending on materials

Pressing time

min. 2 h / 20 °C


Unopened at +10–25 °C in a container (1000 l) for 6 months, in smaller containers 12 months. After long storing, stir before use.

Instructions for use

The surfaces to be bonded must be clean and dry. Remove oxides by sanding, and grease etc. dirt with Kiilto Cleaner 303. The properly cleaned surface can be sanded and then primed to improve adhesion. Remove the sanding dust carefully prior to adhesive application. Stir Kestopur 203/15 green -resin before use. Add Kestopur 200/S hardener to resin and mix until a uniform colour is achieved. Apply the adhesive with a spreader or other application tool on one or both sides of the materials to be bonded. Fresh adhesive stains are removed with a dry cloth and then surfaces are cleaned with Kiilto Cleaner 303 or Kiilto Cleaner 302. Cured adhesive can be removed only by mechanical means. We recommend gluing at room temperature. The open time of the adhesive depends on temperature and air humidity. However, the gluing can be carried out at lower temperatures (even at +10 °C), but then the pressing time will be significantly longer and spreading properties will suffer. Higher pressing temperature will shorten the pressing time.

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 and methods 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 product’s suitability to the intended application.

Environment and safety

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

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