Special Field Polyurethane Prepolymer Printing Roller & Scraper Field
|FOB Price:||US $1.1-99.9 / kg|
|Min. Order:||1 kg|
|Min. Order||FOB Price|
|1 kg||US $1.1-99.9/ kg|
|Transport Package:||According to The Customer Demand|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal, Money Gram, D/A|
- Model NO.: SPF-561 & SPF-562 & SPF-563
- Molecular Principal Chain: Heterochain Polymer
- Trademark: sinograce
- HS Code: 3921199000
- Synthetic Resin: Unsaturated Polyester Resin
- Color: White
- Origin: China Anhui
Can be used for organic solvents, such as esters, toluene, printing ink, water-based ink, ketones, etc.
|Prepolymer||Appearance (25ºC)||Waxy solid||viscous liquid||Waxy solid|
|Using Mixture Ratio (PHR)||6.9~7.5||7.1~8.3||7.1~8.3|
|Life in the Reaction Kettle (75~78ºC/min)||5~7||5~7||5~7|
|Physical Properties of Finished Products||Hardness (Shore D)||65±5||75±5||85±5|
|Tensile Strength (MPa)||28.7||38.2||39.5|
|Tearing Strength (kN/m)||35.9||67.5||56.4|
|Elongation at Break (%)||498||710||231|
|TOL/EA/CYC Mixed Solvent 24h Expansion Rate(%)||+15||+9||+5|
Mainly used in the production of various kinds of printing roller, screen printing scraper, etc.
Can be used for manual, some products are more suitable for the operation of pouring machine, chain extender are MOCA, E-300, BDO or special chain extender.
The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used
After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.
The storage period of unopened prepolymer is three months.
If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.