Modified MDI self-crusting products XCG6623

Modified MDI self-crusting products XCG6623

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Payment Type:	L/C,T/T,D/P
Incoterm:	FOB,CIF
Min. Order:	1 Ton
Transportation:	Land,Ocean,Air
Port:	SHANGHAI

Option:

20/225KGS

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Product Description

Product Attributes

Model No.: XCG6623

Brand: xuchuan

Place Of Origin: China

Types Of: Synthetic Resin And Plastics

Name: XCG-6623

Appearance: Brown liquid

NCO Content，％: 31.8~32.8

Viscosity At 25℃，mPa.s: 20~40

Packaging & Delivery

Selling Units	:	Ton
Package Type	:	DRUM
Picture Example	:

Product Description

Polyurethane Raw Materials

Component XCG-6623

Use: Chemical

Company:

XuChuan Chemical (Suzhou) Co., ltd.

215434 TaiCang, JiangSu, China

Telephone: +86 0512 53639256

Telefax number: +86 0512 53639257

1. Application

Modified MDI, is a mixture of polyol-modified diphenylmethane diisocyanate and

polyphenylmethane polyisocyanate. It is a brown liquid at room temperature. It can be main

used in the production of high resilience foam or slow rebound foam.

2. Typical physical and chemical properties*

Name

XCG-6623

Appearance

Brown liquid

NCO content，％

31.8~32.8

Viscosity at 25℃，mPa.s

20~40

Specific gravity at 25℃

1.20

Acidity (as HCL) ，%

＜0.05

Flash point，℃

＞170

*These values provide general information and are not part of the product specification.

3. Package

200 liter iron drums, 225kg/drum

Polyurethane Raw Chemical

4. Storage

Since XCG-6623 is a reactive chemical, reaction with atmospheric moisture happens

easily and leads to the formation of insoluble ureas and carbon dioxide gas, which can

result in pressure build-up in closed containers and viscosity increase of the product. Technical Data Sheet XCG-6623

Containers must therefore be absolutely dry and carefully sealed after congested with

nitrogen.

Containers of XCG-6623 should be kept properly closed and stored indoors at ambient

temperatures (20-25℃) in a well-ventilated area. Storage at low temperatures (below 10℃)

may lead to some crystallization; this material must, therefore, be protected from frost. If

crystallization does occur, the material should be heated to 60-70℃ to melt it out, strictly

prohibit to heat over at local part and should then be thoroughly agitated before use.

Since XCG-6623 is very easy to react with moisture and leads to the formation of carbon

dioxide gas, containers must therefore be absolutely dry and sealed to protect from

moisture and water. In case water splashes into the containers, be careful to avoid sealing

it too tightly. It is important to leave holes to prevent containers from explosion.

5. Shelf Life

Under recommended storage conditions, the shelf life of XCG-6623 is 12 months. If the

production is overdue, but it’s main physical and chemical properties in the guide line, may

not effect on its using properties.

6. Safety

XCG-6623 is of low toxicity by inhalation and skin absorption. The very low volatility of

XCG-6623 means that it should be of little hazard for brief exposures under normal

conditions, e.g. in cases of small spillages.

Nevertheless, XCG-6623 is an isocyanate-based composition and should be of certain

toxicity. It may cause mild eye irritation and slight skin irritation. It may pose problems of

skin sensitization. XCG-6623 has a Ceiling Threshold Limit Value, TLV(C) of 0.02ppm

(0.2mg/M3 ). It is important to note, however, that a vapour hazard will arise if the material

is heated to temperatures above 40℃, or if it is reacted in an unventilated space. Another

hazard is the formation of air-borne droplets during spraying operations. Under such

conditions, it is essential to wear a gas mask and a respirator since repeated inhalation of

the vapour at levels above the TLV(C) could cause respiration sensitization.

If inhaled:

Mdi Based Pu Chemical

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