ROHAGIT SD 40

ROHAGIT SD 40 is a thickening agent based on an aqueous dispersion of a thermoplastic methacrylic acid-acrylic ester copolymer. The dispersion is free from film forming aids, solvents and plasticizers.

Available Documents

TDS Download

Technical Informations

Application Advice/Typical Applications

ROHAGIT SD 40 contains a preservative to counter microbial attack during transportation. To protect it against germination during subsequent storage, absolutely stringent plant hygiene and, under certain circumstances, the addition of suitable preservatives will be necessary.

ROHAGIT SD 40 is a uv stable, universal thickening agent for polymer dispersions and other aqueous systems with a pH value 7,5. Rohagit SD 40 is used as thickening agent in non-pigmented or pigmented products like dispersion based paints, plasters, products for the construction chemistry or other waterborne compounds. So modified end products exhibit a pseudoplastic rheology. The thickening effect depends on the ROHAGIT SD 40 dosage as well as on the type and quantity of base used for neutralization. Suitable alkalis are amino alcohols, AMP 90 and ammonia. ROHAGIT SD 40 can be used as thickening agent for aqueous media either as supplied (direct thickening) or as aqueous alkaline solution (stock solution). For direct thickening the pH value of the compound to be thickened has to be adjusted with alkali and afterwards ROHAGIT SD 40 is added while stirrring. For thickening with stock solution ROHAGIT SD 40 is diluted with water to a solids content of 9 - 10%, and then pH value is adjusted to receive a clear, pasty solution. The compound to be thickened should be adjusted to an alkaline pH value. For longer storage time a biocide should be added to stock solutions.

Shipping and Storage

ROHAGIT 40 is supplied in road tankers or in non-returnable plastics drums secured by a lid with clamping ring or in non-returnable palletized bulk containers (net weight 1,000 kg). ROHAGIT 40 has to be stored protected from frost and, as far as possible, below 40 °C. Storage at temperatures between + 5 and + 30 °C is recommendable. ROHAGIT 40 contains a preservative to counter microbial attack during transportation. To protect it against germination during subsequent storage, absolutely stringent plant hygiene and, under certain circumstances, the addition of suitable preservatives will be necessary. Care must be taken to ensure that drums and storage containers are tightly closed. During processing, storage and transport of the product contact with metals unprotected against corrosion (likewise non-ferrous metals) has to be avoided. When stored correctly ROHAGIT SD 40 has a storage life of 12 months from date of delivery.

Product Security/Health and Safety

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

Effluents and Pollution Control

Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.

For further information regarding this product please refer to:

Zieglerova, Jeaneta
Phone: +420 737 206 966
FAX:
eMail: Jeaneta.Zieglerova@synthomer.com


Properties

Character Value Unit
Solids Content 25,0
pH Value 2,5  
Viscosity < 100 mPa s 
Density 1,05 g/cm³ 
Mean Particle Size 150 nm 
Ionic Character anionisch  
Glass Transition Temperature 100 °C 


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