Structural formula

The average molecular weight of 4250 single-ended dihydroxy structure has high reactivity with -NCO, -COOH

Product description:

It is a single-end bis-hydroxy terminated silicone prepolymer with similar reactivity with polyol. It can be copolymerized with -NCO and COOH. It is mainly used for synthesizing silicon modified polyurethane resin and emulsion, and silicone modified poly. Ester resin, etc., can give the resin excellent hand feeling and improve wear resistance. Prevent adhesions, stains and graffiti.

Technical indicators:

Parameter                            value

Appearance:                       Colorless to pale yellow transparent liquid

Hydroxyl content % :             0.8

Average molecular weight :   4250

Viscosity 25°C cst :            800-1800

Solid content % :             96.00±3.00

Features:

Greatly improve the high wear resistance of the resin or coating

Excellent hand and slippery

Excellent anti-stick, anti-stain and anti-graffiti

Good resin compatibility

Highly reactive with -NCO, -COOH

Low surface tension for smoothing and flow

Applications:

Synthetic silicon PU resin and emulsion

Modified polyester, polyurethane and urethane acrylate

Two-component PU paint and amino paint

Instructions:

Silicon PU resin and emulsion: reacting with isocyanate to synthesize -NCO-terminated prepolymer, and then adding polyol chain extension reaction;

It can also be added to the copolymerization reaction simultaneously with the polyol.

Copolymerization with MDI and TDI at 85 ° C

Copolymerization with IPDI is recommended at around 90 °C

Two-component PU or amino baking varnish: adding main resin and dispersing evenly

Packaging, storage and transportation:

1. Packed in 25 kg plastic drum or 200 kg iron drum.

2. Put into a clean and dry container and store in a ventilated and dry warehouse.

3. This product is transported as non-dangerous goods.

4. Shelf life: 1 year

5. Brand: IOTA