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hf-4416 low temperature unblocking one-component hdi isocyanate curing agent

November 20, 2023by admin0

model hf-4416

type low temperature deblocking one-component hdi isocyanate curing agent

apply one-component baking film coatings of various polyurethane types, primers for various substrates, high-durability industrial paints.

main features

-110℃ low temperature unsealing, high temperature fast curing, can be used as pre-coating film field

– good compatibility with various types of resins, light resistance, chemical resistance, improve the physical strength of the coating film, high weather resistance, yellowing resistance, washing resistance, excellent adhesion.

-high storage stability at room temperature .

product specifications

physical properties

value

non-volatile components (% )

40±1

color (garden)

≦ 1

viscosity (25℃, mpa .s)

200

nco content (%)

4.4

ion type

anions

density 25℃

1.0-1.1

ph value

7-8

save

should be at 5℃-30 store under ℃, store in a dry place indoors, avoid direct sunlight. under the specified storage conditions, the expected shelf life of this product is 360 days.

recommendations for use

recommended addition 0.5%the catalyst can be used in115-120 degrees30 minutes to dry completely, but add 0.5% of the catalyst will reduce the storage stability of the finished product according to the experimental data, after adding 0.5% after the tin catalyst at 40 continuously placed at 100 degrees celsiusday-to-day viscosity varies greatly (40 one ​​day is about 25 degreedays), at 40 degree placement60 the viscosity changes slightly every day, so it is recommended that if the goods need to be stored for a long time, adding a catalyst before use can better ensure the storage stability of the product.

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