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Best quality Polyester Resin - Unsaturated Polyester Resin Manufacturers – Dujiang
Using a complete scientific top quality management program, great high-quality and fantastic religion, we win great track record and occupied this area for Fabric Carbon Fiber, Carbon Fiber Plate, Glass Fabric Roving, We warmly welcome domestic and overseas customers send inquiry to us ,we have 24hours working team! Anytime anywhere we are still here to be your partner.
Best quality Polyester Resin - Unsaturated Polyester Resin Manufacturers – Dujiang Detail:
PROPERTY
•7937 resin polyester resin with medium reactivity
•Moderate temperature peak, high strength, shrinkage, good toughness
APPLICATION
•It is suitable for solidifying quartz stone at room temperature and medium temperature.,ect
QUALITY INDEX
| ITEM | Range | Unit | Test Method |
|
Appearance |
Light yellow |
||
| Acidity |
15-21 |
mgKOH/g |
GB/T 2895-2008 |
|
Viscosity, cps 25℃ |
0.65-0.75 |
Pa. s |
GB/T 2895-2008 |
|
Gel time, min 25℃ |
4.5-9.5 |
min |
GB/T 2895-2008 |
|
Solid content, % |
63-69 |
% |
GB/T 2895-2008 |
|
Thermal stability, 80℃ |
≥24 |
h |
GB/T 2895-2008 |
|
color |
≤70 |
Pt-Co |
GB/T7193.7-1992 |
Tips: Detection of Gelation Time: 25°C water bath, 50g resin with 0.9g T-8m ( L % CO) and 0.9g M-50 (Akzo-Nobel)
MEMO: If you have special requirements of the curing characteristics, please contact our technical center
MECHANICAL PROPERTY OF CASTING
| ITEM | Range |
Unit |
Test Method |
| Barcol hardness |
35 |
GB/T 3854-2005 |
|
| Heat Distortion temperature |
48 |
°C |
GB/T 1634-2004 |
| Elongation at break |
4.5 |
% |
GB/T 2567-2008 |
| Tensile strength |
55 |
MPa |
GB/T 2567-2008 |
| Tensile modulus |
3300 |
MPa |
GB/T 2567-2008 |
| Flexural Strength |
100 |
MPa |
GB/T 2567-2008 |
| Flexural modulus |
3300 |
MPa |
GB/T 2567-2008 |
| Impact strength |
7 |
KJ/㎡ |
GB/T2567-2008 |
MEMO: Performance standard: GB/T8237-2005
PACKING AND STORAGE
• The product should be packed into clean, dry, safe and sealed container, net weight 220 Kg.
• Shelf life: 6 months below 25℃, stored in cool and well
ventilated place.
• Any special packing requirement, please contact our support team
NOTE
• All information in this catalog is based on GB/T8237-2005 standard tests, only for reference; maybe differ from the actual test data.
• In the production process of using resin products, because the performance of user products is affected by multiple factors, it is necessary for users to test themselves before selecting and using resin products.
• Unsaturated polyester resins are unstable and should be stored below 25°C in a cool shade, conveyance in refrigeration car or in nighttime, averting from sunshine.
•Any unsuitable condition of storage and conveyance will cause the shortening of shelf life.
INSTRUCTION
• 7937 resin does not contain wax, accelerator and thixotropic additives.
• 7937 resin is suitable for curing at room temperature and medium temperature. Medium temperature curing is more conducive to production control and product performance assurance. Recommended for medium temperature curing system: tert-butyl peroxide isooctanoate TBPO (content ≥97%), 1% resin content; curing temperature, 80±5℃, curing not less than 2.5 hours. Recommended coupling agent: γ-methacryloxypropyl trimethoxysilane KH-570, 2% resin content.
• 7937 resin has wide applicability; it is recommended to choose 7982 resin or o-phenylene-neopentyl glycol 7964L resin with higher performance requirements; it is recommended to choose m-phenylene-neopentyl glycol 7510 for higher water resistance, heat resistance and weather resistance. Resin; if the equipment can meet the requirements, please choose low-viscosity isophthalic 7520 resin, which is more economical and has better performance.
• In the production process of the product, after heating and curing, it should be steadily lowered to room temperature, to avoid rapid cooling, to prevent product deformation or cracking, especially in winter. The cutting and polishing of quartz stone in the production process should be carried out after sufficient post-curing.
• The moisture absorption of the filler should be avoided. Excessive moisture content will affect the curing of the product and cause performance degradation.
Product detail pictures:
Related Product Guide:
"Sincerity, Innovation, Rigorousness, and Efficiency" could be the persistent conception of our organization for your long-term to establish alongside one another with shoppers for mutual reciprocity and mutual benefit for Best quality Polyester Resin - Unsaturated Polyester Resin Manufacturers – Dujiang , The product will supply to all over the world, such as: Dubai, South Africa, Luxemburg, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of "good quality, reasonable price, the first-class service". We are willing to build long-term, friendly and mutually beneficial cooperation with you.
By Gloria from Bhutan - 2018.12.11 14:13
We always believe that the details decides the company's product quality, in this respect, the company conform our requirements and the goods are meet our expectations.
By Lulu from Singapore - 2017.05.21 12:31
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