Toluene diisocyanate manufacturer Knowledge Covestro Desmodur BL 4265SN heat-activated curing agent anti-yellowing chemical resistance high hardness

Covestro Desmodur BL 4265SN heat-activated curing agent anti-yellowing chemical resistance high hardness

                           

Features Characteristics     Isophorone diisocyanate (IPDI ) blocked aliphatic polyisocyanate and polyol components to prepare light-resistant one-component baking varnish

Supply Form about65%Soluble in SN100in solvent

Specifications

Features

Value

Measurement unit

Method

Non-volatile component content (0.2g/1h/125 °C

65 ±2

%

M020 -ISO 3251

<spAbout three weeks after it's all thawed. In order to prevent crystallization, it must ensure that the product is not lower than 20°C. Upon receipt, product samples should be tested for crystallization. If crystallization occurs during transport or storage, product crystallization must be immediately remelted. Regardless of the temperature at the melting point (the temperature of the substance) exceeds 70, nor should it take the time requiredreliquefy, because this exceeds the product, will greatly promote the formation of non-fusible dimers. It shall ensure remelting and homogenization of the entire content container. Containers must be closed immediately with their contents and cooled at standard storage temperatures (20-25). Partial crystallization of the product in a short period of time will not seriously affect the quality, but the storage stability will be slightly reduced. The product should be re-dissolved as soon as possible.

Storage Time
In product store exactly as aboveSaveThe requirements in the terms and inProperly handled, the product is shipped from the date of shipment stated on the shipping document9Conform to the above within one monthSpecification or characteristic valueThe specifications or characteristic values ​​described in the article (applicable according to the situation ). If the product exceeds the above9A period of one month does not mean that it no longer meets the values ​​set in the specifications or characteristic values. However, it is recommended to use more than 9Months of product are tested before use to confirm whether they still meet the set values ​​in the specification or characteristic values. Manufacturers are more than 9Months product does not make any promises and does not accept any responsibility and liability for its failure to meet the specifications or set values ​​in the characteristic values.

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