Jinan Ouda Foundry Materials Co., Ltd.

Manufacturer of Phenolic Resins for Coated Sand

Coated-Sand Resins for Foundries
Published by: Published: 2019-08-17 14:02 Views:

[Product Features]: This series consists of thermoplastic phenolic resins produced by the polycondensation of phenol and formaldehyde. Advantages include good flow, fast curing, high flexural strength, low free-phenol content and resistance to shell peeling. They are mainly used to prepare resin-coated sand for shell molding in foundries.

1. Easy coating, with good coated-sand flow, moisture resistance, high strength and good collapsibility.

2. Low gas evolution, smooth casting surfaces and high dimensional accuracy.

3. High production efficiency, especially suitable for high-volume core production for a single part.

[Applications]: Coated sand for cast iron, ductile iron, general steel castings and non-ferrous castings; also suitable for foundry coatings and specialty zircon coated sand.

[Packaging and Storage]: Packed in 25 kg woven bags. Store in a cool place away from direct sunlight. Do not stack filled bags too high, to avoid caking.

[Technical Specifications]

Grade

Appearance

Free Phenol

Cure Time, s at 150°C

Softening Point, °C

Application

XYT-350

   

Pale yellow or yellow granules

﹤3%

28-34

85-93

Fast curing / molds or cores

XYT-901

﹤2%

50-70

85-96

High strength / cores

XYT-902

﹤2%

45-65

95-102

High strength / cores

XYT-903

﹤2%

75-100

80-90

Aluminum casting / cores

XYT-904

﹤2%

55-70

80-90

Aluminum casting / cores

Notes

Special products can be developed to meet customers' specific production requirements.



Links:

OUDA FOUNDRY MATERIALS

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