RC Catalyst 108 CAS108-39-4 Rhine Chemical

RC Catalyst 108 is a water-based rapid curing catalyst for the production of polyurethane foams. It is a clear, colorless liquid with a mild odor. The active ingredient in RC Catalyst 108 is m-cresol sulfonic acid.

Physicochemical properties



CAS number


Molecular Formula


Molecular weight

182.20 g/mole


1.20g/cm ³

Flash point

100 ℃


Miscible with water


RC Catalyst 108 is used to produce a variety of polyurethane foams, including hard, soft and semi-hard foams. It is also used in the production of polyurethane elastomers and sealants.


RC Catalyst 108 has a number of advantages over other polyurethane catalysts, including:

· It cures quickly, making it ideal for applications that require fast turnaround times.

· It is water-based and therefore easy to use and clean up.

· It is safe to handle and use.

· It produces high quality foam with good physical properties.

Precautions for use

RC Catalyst 108 is a strong acid that can cause skin irritation and burns. It is important to wear gloves and safety goggles when handling RC Catalyst 108. It is also important to keep RC Catalyst 108 away from children and pets.


RC Catalyst 108 should be stored in a cool, dry place. It should be stored in an airtight container to prevent moisture from entering.


RC Catalyst 108 should be disposed of in accordance with local regulations. Always consult with a hazardous waste disposal company to ensure safe disposal of RC Catalyst 108.

The following table lists the physical and chemical properties of RC Catalyst 108:




Clear colorless liquid





Specific Gravity


Flash point

100 ℃


Miscible with water

Shelf life

1 year

Storage temperature

5-25 ℃

RC Catalyst 108 is a versatile catalyst that can be used to produce a variety of polyurethane foams. It is fast curing, water based and safe to operate. The RC Catalyst 108 is ideal for applications where fast turnaround time, ease of use and safety are important considerations.

Shelf life:

Remain unopened for two years

Storage and Transportation:

Should be sealed, stored in a dry cool ventilated warehouse


200KG/ barrel storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent moisture and other substances from mixing and affecting the product performance. Do not inhale dust and avoid contact between skin and mucous membrane. Smoking, eating and drinking are prohibited in the workplace. Shower and change after work. Store contaminated clothes separately and use them after washing. Practice good hygiene.

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