Brazil 281

Tianhe Dian Shi brand DS-281 is a phthalate-type unsaturated polyester resin, featuring low viscosity and high reactivity. It has excellent wetting properties, good air-drying capability, fast curing, and high hardness. It is suitable for hand lay-up molding and for reinforcing the surface of marble to prevent chipping during cutting.

Product Description

DS-281

DS-Tianhe Resin Series

Tianhe Dianshi brand DS-281 is a phthalic type unsaturated polyester resin with low viscosity and high reactivity. It has good wettability, good air-drying properties, fast curing, high hardness, and is suitable for hand lay-up molding. It is used for surface coating and reinforcement of marble to prevent cracking during cutting.

Liquid Resin Technical Specifications
Item Unit Indicator Testing Standard
Appearance   Transparent viscous liquid  
Color (Pt-Co)     GB7193.7
Acid Value mgKOH/g 22-28 GB2895
Viscosity at 25℃ mPa.S 300-500 GB7193.1
Gel Time min 3-10 GB7193.6
Solid Content % 62-64 GB7193.3
80℃ Stability h ≥24 GB7193.5
Note: Gel time is measured at a temperature of 25℃ in an air bath with 50g of resin, adding 0.4ml of cobalt octoate solution and 0.4ml of MEKP solution.

 

Resin Casting Body Performance Indicators (for reference only)
Item Unit Indicator Testing Standard
Barcol Hardness Barcol 45 GB3854
Tensile Strength MPa 65 GB2568
Tensile Modulus MPa 2500 GB2568
Elongation at Break % 3 GB2568
Flexural Strength MPa 85 GB2570
Flexural Modulus MPa 3000 GB2570
Impact Toughness KJ/m² 6 GB2571
Heat Distortion Temperature 75 GB1634
Note: Experimental environment temperature is 23±2℃ with relative humidity of 50±5%

 

Packaging and Storage

The packaging of Tianhe Dianshi brand DS-281 is a metal drum with a net weight of 220KG. The storage period at 20℃ is six months. Higher temperatures will shorten the storage period accordingly. It should be stored in a cool, ventilated place, avoiding direct sunlight and heat sources. This product is flammable and should be kept away from open flames.

Note: This data is determined according to national standards (GB). Due to various factors affecting the processing process, it does not exclude the necessity for users to conduct their own experimental research. Legally, it does not guarantee that certain performance characteristics of the product are fully applicable to any specific use, and reserves the right to modify the information.