Baypren®, Desmocoll®, Dispercoll® adhesive raw materials can be applied as a one-component system. However, they can also be combined with Desmodur® D or R as a second component to modify specific properties of the adhesive, like the temperature resistance or the resistance against certain chemicals.
Desmodur® R & Polychloroprene adhesive raw materials (Baypren®)
For many adhesive applications the properties of Baypren® are sufficient to achieve the desired performance. If additional bonding strength or resistance properties are required the polyisocyanate crosslinkers Desmodur® RE, RFE, RC or RN can be added to the formulation to fine-tune properties. This adds additional
- Temperature resistance
- Resistance against plasticizers, oils or fats
- Adhesion to difficult substrates
Desmodur® RE and Desmodur®RFE are very reactive isocyanate crosslinkers and they are suitable for a large number of different substrates.
Desmodur® RC and Desmodur® RN are very light in color and exhibit excellent yellowing resistance.
Desmodur® R & Hydroxy-polyester-polyurethane adhesives (Desmocoll®)
Desmocoll®-based adhesive solutions can meet a large number of performance requirements when used as a one-component system. If for particular applications even a higher performance is required, a Desmodur® R isocyanate crosslinkers can be added to the formulation. This adds additional/improved
- Temperature resistance
- Resistance against plasticizers, oils or fats
- Resistance against hydrolysis and water
- Adhesion to difficult substrates
Desmodur® RE and Desmodur®RFE are very reactive isocyanate crosslinkers and they are suitable for a large number of different substrates. Desmodur® RC and Desmodur® RN are very light in color and exhibit excellent yellowing resistance.
Desmodur® N 75 MPA/X and Desmodur® L 75 meet the requirements of the BfR as well as the FDA -Regulation § 175.105 "Adhesives" for the use of crosslinkers in food packaging.
Desmodur® D for waterbased adhesives (Dispercoll® U)
The grades of the Desmodur® D product range are hydrophilically modified isocyanates that are used to crosslink polymer dispersions. Desmodur® D grades are best suited for polymer dispersions at a neutral pH. These two-component adhesives have a pot life of appr. 6 to 8 hours. The isocyanate crosslinker reacts with the dispersion polymer after the adhesive film is dry. This crosslinking reaction significantly improves the performance of the adhesive bond regarding
- Temperature resistance
- Resistance against plasticizers, oils or fats
- Resistance against hydrolysis and water
- Resistance against solvents
Concerning its composition Bayhydur® 304 complies with the requirements of the FDA regulation (Title 21 CFR): § 175.105 “Adhesives”
For more details on our isocyanate crosslinkers have a look at this brochure: Desmodur® D, Desmodur® R
