Something about pu castor excellent physical properties
Something about pu castor excellent physical performance, exterior colour and lustre is light, the colloid surface fine and smooth, firm adhesion of colloid material and core shaft.
Caster and strictly control the size, size under the condition of different temperature and humidity, there would be no big change.
High temperature and high humidity environment can adapt to the south a printing shop and northern cold dry climate conditions.
Pu castor hardness broad index, can meet the requirements of different type printing machine on the caster and hardness.
Pu castor with colloid has enough surface viscosity, can guarantee the castor good transfer in the process of printing ink and inking performance, its good hydrophilic performance ensures high quality printing ink.
Pu castor chemistry performance is good, suitable for all types of printing ink and printing method.
In all kinds of liquid, detergent, ink solvent composition has a special resistance to resistance.
Pu castor also applies to the UV ink castor and glazing castor oil, etc. , especially to the boiling water, diesel, gasoline, kerosene, toluene, alcohol, lubricating oil and brine solution with good solvent resistance.
But not acetone, ethyl acetate and acid alkali resistance.
Pu castor has excellent physical performance, the long-term use of castor won't harden, aging, and tear resistance and rebound resilience can good, excellent wear resistance, long service life, therefore, easy to preserve, long stored does not affect the use effect;
Able to bear high pressure, high speed, high temperature, high humidity environment.
The experimental results show that the tensile strength of polyurethane casters, wear resistance is 3 times of natural rubber casters, and 5 times;
Compression permanent deformation, good resilience;
The service life of the pu castor for general castor more than 1 times.
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