Bio-based adhesives & cleaners

Environmental thinking - not waiting!

The world’s population is increasing - but our fossil resources are decreasing. So, more than ever before, it is essential to think of a sustainable future! Exactly for these reasons, sustainability, particularly regarding environmental protection, is of particular importance. It is therefore also an important subject for Weiss, not only for today, but also for future generations.
Responsible management of our water protection, exhaust gasses, and waste cyclesalready form part of our firmly established standards. And now, to further optimize our utilization of resources, we are concentrating on replacing fossil fuels in our adhesives with renewable resources.

Ecological sustainability - bio-based adhesives

Our bio-based adhesives actively contribute to the protection of the environment: As innovative products, they have been developed with particular consideration for our limited resources, yet without losing sight of the top quality which we consider a matter of course.

To a large extent, many of these raw materials produced by agricultural and silvicultural processesare climate-neutral. This way, no increase of CO² emissions will be generated in the future. Environmental and limited resources will be protected for further generations. In the meantime, there are numerous possibilities for processing the most diverse bio-based materials such as starch, vegetable oil, resins, lignins, proteins, and others. It is also possible to use renewable raw materials in adhesives. By substituting fossil resources, we have succeeded in developing adhesives on the basis of bio-based products.

Optimization of our adhesives

Our bio-based adhesives include a high content of raw material from renewable sources. Simultaneously we are further improving their already very good properties. Sustainable quality....made by Weiss!

COSMO PU-100.900

1-part PUR biobased assembly adhesive


  • For universal use
  • With aluminium window and door construction for bonding corner connectors
  • Window and door construction
  • Board joint bonding of panels in the wood, window and front door areas
  • Stair construction and building trade
  • With many assembly bonding processes
  • With laying of skirting and laminate
  • Fixation of struts for double floorings
  • Fixation of signs
  • Diverse industrial fields


  • DIN-certified BIO-BASED 20-50%
  • Contains approx. 26 % bio-based carbon content
  • Semi-hard adhesive joint
  • Solvent-free
  • Thixotropic, does not drop off
  • Compatible with natural stone
  • Expands (foams) during the curing process!
  • Joint-filling
  • Particularly fast reaction time
  • Uniform curing
  • Very short pressing times
  • Good bonding strength
  • Good adhesive properties to  
  • several types of wood and building material, ceramics, metal, TS polymers and thermoplastics after corresponding preparation of the surfaces
  • Achieves durability class D4 as per EN 204 and a heat resistance of 7.5 N/mm² as per DIN EN 14257 (WATT 91) if wood is glued to wood
  • Good weather-resistance
  • Can be over-coated with many paint systems
  • Can be ground when cured

more details

COSMO PU-200.900

Biobased 2-part PUR adhesive

Not subject to labelling with H351 (R40) 2-part biobased adhesive with excellent heat- and weather resistance for constructional force-locked connections.


  • Hard pointing of wall elements
  • Structural, force-locking bonding of the most varying material combinations, e.g. in the field of vehicle body manufacture
  • For bonding of Alu, HPL, GRP and other materials
  • Aluminium window and door manufacturing for bonding of corner connectors


  • Bio-based on sustainable raw materials (60 % bio-based carbon content)
  • UV colour retention
  • semi-hard adhesive joint
  • Solvent-free
  • Thixotropic, does not drop off
  • Good weather-proofness
  • Can be over-coated with many paint systems
  • Features easy handling of tandem cartridge with static mixer

more details

COSMO PU-220.900

2-part PUR biobased surface adhesive


  • Is used in the surface bonding of XPS, GRP, steel sheet, anodised aluminium, stainless steel, mineral wool, PVC, etc.


  • Contains approx. 50 % bio-based carbon content
  • Very low foaming with moist materials
  • Tough-elastic adhesive joint
  • Adheres to a wide variety of substrates
  • Excellent wetting of substrates
  • Very hydrophobic, thus good water resistance
  • Optimum for vacuum pressing

more details

COSMO DS-470.900

Biobased adhesive sealant for vapour-proof barriers

Air-tight bonding of vapour checks and barriers and sealing films


  • DIN-certified BIO-BASED 20-50%
  • Contains approx. 47 % bio-based carbon content
  • Self-adhesive after curing
  • High strength on a wide variety of film types
  • Very easy to apply, particularly at low temperatures
  • Fast curing
  • Solvent-free
  • Can be applied using the contact bonding method
  • GEV-EMICODE EC1 PLUS, very low-emission

more details

COSMO CL-300.900

Biobased intensive cleaner


  • Intensive cleaning of plastics and metals
  • (slightly dissolving on plastic)


  • Contains approx. 80% bio-based raw material content
  • Intensive cleaning effect
  • Mild odour during processing
  • Quick evaporation
  • Reduced marking
  • Reduced workplace loading
  • Low requirements on storage conditions

more Details

Questions for adhesivese

Do you have questions?
Our Consultants:

Hans-Jürgen Sieber
Tel.: +49 (0) 2773/815-274 - Email

Danny Jaskotka
Tel.: +49 (0) 2773/815-255 - Email

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