Atlac® 382, a ground powder of bisphenol A fumarate polyester, is a ground powder of propoxylated bisphenol A fumarate polyester.It dissolves readily in active monomer solvents (such as styrene) to form an unsaturated polyester resin. A 50% (w/w) solution of Atlac® 382 powder in styrene is referred to as Atlac® 382.(See “Dissolution of Atlac® 382 Powder” for details.)
Characteristic Properties
- Resistant to hot water, acids, and salt solutions at relatively high temperatures
- Resistance to alkaline solutions at moderate temperatures
- Good weather resistance
Typical Applications
Atlac® 382 is suitable for most manufacturing processes, particularly filament winding, centrifugal casting, hand lay-up, and spray-up processes. It can also be used to formulate glass flake coatings and putty.
Atlac® 382 Powder is suitable for various room-temperature curing processes, such as hand lay-up, filament winding, spray-up, cold compression molding, and RTM.
Certified
, cured, unreinforced Atlac® 382 resin is classified as Type 1310 under German DIN 16946/2, Group 5 under DIN 18820/1, and Group 6 under European EN 12131/2.
Product Specifications
| Performance | Value | Unit | Test Method |
|---|---|---|---|
| Appearance | Clear/Slightly Turbid | - | TM_2265 |
| Viscosity @23°C | 5–12 | mPa·s | TM_2013 |
| Gel Time | - | min | TM_2625 (25°C to 35°C) |
TM2013: 50% styrene solution, Physica (Z2/100 s⁻¹/23°C)
TM2625: 50% styrene solution; 1 g of NL 63-10P, 0.5 g of
NL-51P, and 1.5 g of M50 added to 100 g of resin (all reagents are Nouryon products)
Typical Resin Properties
| Property | Value | Unit | Test Method |
|---|---|---|---|
| Shelf Life | 12 | Month | No initiator added; protected from light; 25°C |
Dissolution of Atlac® 382 Powder
Atlac® 382 resin can be prepared by dissolving Atlac® 382 powder in styrene at a ratio of 50% (w/w, weight ratio). The dissolution method varies depending on the type of disperser used.
1. When using a Cowless high-speed disperser, first add all the styrene to the dissolution tank. Turn on the agitator and quickly add the Atlac® 382 powder until it is fully dissolved.
2. When using a propeller-type mixer, first add half of the styrene to the dissolution tank and turn on the mixer. Slowly add the Atlac® 382 powder under continuous vortex agitation. After adding the powder, add the remaining half of the styrene and continue stirring until dissolved.
It is recommended to add a small amount of polymerization inhibitor to the styrene before adding the Atlac® 382 powder.(For example: p-tert-butylhydroquinone.
) Slowly raising the dissolution temperature to 50°C can accelerate the dissolution of Atlac® 382 powder in styrene.
To adjust the resin’s gel time, a solution of dimethylaniline and cobalt salt can be used.For specific guidelines, refer to the gel characteristics for different ratios in the *Atlac Resin Industrial Anti-Corrosion Manual*.
Process Operation Guidelines
Atlac® 382 powder is a ground powder of propoxylated bisphenol A fumaric acid polyester. A 50% (w/w) solution of Atlac® 382 powder in styrene is Atlac® 382.(See “Dissolution of Atlac® 382 Powder” for details.)