Special field polyurethane prepolymer Printing roller, scraper field

  • Brand:

    sinograce
  • Item NO. :

    SPF-561 SPF-562 SPF-
  • Payment:

    L/C、D/A、D/P、T/T、MoneyGram、Paypal Other.
  • Product Origin:

    China Anhui
  • Shipping Port:

    Shanghai And Other Ports
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Product Detail

Description

Printing roller, screen printing scraper


Key features

Can be used for organic solvents, such as esters, toluene, printing ink, water-based ink, ketones, etc.


Typical properties 

Special field

SPF-561

SPF-562

SPF-563

Prepolymer

Appearance (25℃)

Waxy solid

viscous liquid

Waxy solid

NCO Content(%)

2.4~2.6

3.0~3.5

3.0~3.5

Using Mixture Ratio (PHR)

6.9~7.5

7.1~8.3

7.1~8.3

Life in the Reaction Kettle (75~78℃/min)

5~7

5~7

5~7

Physical Properties of Finished Products

Hardness (Shore D)

65±5

75±5

85±5

Tensile Strength (MPa)

28.7

38.2

39.5

Tearing Strength (kN/m)

35.9

67.5

56.4

Elongation at Break (%)

498

710

231

TOL/EA/CYC Mixed Solvent 24h Expansion Rate(%)

﹢15

﹢9

﹢5


Application

Mainly used in the production of various kinds of printing roller, screen printing scraper, etc.


Usage method

Can be used for manual, some products are more suitable for the operation of pouring machine, chain extender are MOCA, E-300, BDO or special chain extender.


Attention

The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used

After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.

The storage period of unopened prepolymer is three months.

If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.

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      Special field polyurethane prepolymer Printing roller, scraper field
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