PTMEG-3000

PTMEG-3000 belongs to the class of polyether polyols which have excellent reactivity.
It is used to make a high quality of polyurethane including spandex and copolyester-ether in such applications as:

• Polyurethane Elastomers
• Synthetic Leathers
• Paint, Coating Agent
• Adhesives, Sealants
• Polyester Elastomers
• Polyamide Elastomers

Precautions

Because PTMEG-3000 is hygroscopic and oxidized, it is very important to protect PTMEG-3000 against exposure to moisture and air. All Korea PTG’s PTMEG-3000 contain oxidation inhibitors to prevent peroxides. PTMEG-3000 is ignitable at high temperature. Water spray, alcohol resistant foam, dry chemical or CO₂ extinguishers may be used to fight fire. When water or foam is used, frothing may occur. When PTMEG-3000 is impregnated into high-surface-area material such as fibrous insulation (e.g., glass fiber, rock wool), PTMEG-3000 can be decomposed rapidly, releasing very flammable tetrahydrofuran, gamma- butyrolactone, etc. and may ignite at temperatures as low as 100°C.

Steel Drum

Solidified PTMEG-3000 can be molten by being heated in melting room about 70°C for about 2~3 days. Temperatures above 90°C are not recommended for prolonged storage. Drums should be stored in dry places such as warehouse with roof and before use any water on top plate of drums should be removed to prevent moisture contamination. During opening of drums and use of PTMEG-3000 in drums, nitrogen should be serviced into drums to avoid the contact with moisture and air.

ISO Tank

Shipping temperature of ISO tank for PTMEG-3000 is about 60°C. ISO tank is insulated and provided with heating coils for reheating. If temperature is low and the product is solidified, enough reheating is required for melting and careful attention is required to avoid plugging of vent, nitrogen gas line and product line. Insure that ISO tank is adequately grounded before connecting and unloading.

Storage Tank

The storage tank must be provided with external or internal heating to maintain a temperature of about 50~60°C (Internal heating coil is recommended due to heating efficiency). Because PTMEG-3000 is hygroscopic and oxidized, it is very important to protect PTMEG-3000 against exposure to moisture and air. Therefore, Korea PTG recommends that PTMEG-3000 should be stored in completely enclosed tanks or containers under a dry nitrogen blanket.

Stability

Shelf life of PTMEG-3000 is approximate 2 years, under condition that the product is stored in unopened, tightly sealed original container at no greater than 90°C and is not contacted with air under a dry nitrogen blanket. Shelf life is only guidance and is not a guarantee because there are various possibilities in site of end users to affect the quality of PTMEG-3000.