Application area: Determine which type of product coating UV varnish will be used for, such as paper, plastic, wood, or metal. Different applications may require different types of varnish.
Substrate type: Consider the surface characteristics of the substrate, such as smoothness, ink absorption, thermal stability, etc., to ensure good adhesion and curing of UV varnish.
Performance requirements:
Wear resistance: If the product requires high wear resistance, choose UV varnish with good wear resistance.
Glossiness: Choose UV varnish with high gloss, matte, or silk gloss as needed.
Adhesion: Ensure good adhesion between UV varnish and substrate, and prevent easy detachment.
Chemical resistance: If the product will be exposed to chemicals, choose UV varnish with good chemical resistance.
Weather resistance: Products used outdoors need to have good resistance to ultraviolet radiation and climate change.
Curing conditions: Consider the existing UV curing equipment, including the power, irradiation distance, and curing speed of the UV lamp, and choose a UV light oil that matches it.
Environmental requirements: Consider compliance with environmental regulations and standards, such as volatile organic compound (VOC) content, restrictions on harmful substances, etc.
Cost effectiveness: Evaluate the price and performance of UV varnish, and choose products with high cost-effectiveness.
Supplier reputation: Choose a reputable supplier who can provide technical support, quality assurance, and excellent after-sales service.
Sample testing: Before bulk purchase, conduct small-scale testing to verify whether the performance of UV varnish meets expectations.
Compliance with regulations: Ensure that the selected UV varnish complies with local legal and regulatory requirements.
User review: Refer to the reviews and usage experience of other users to understand the actual application effect of UV varnish.
