PU glue is the most widely used high-grade plastic drip water, because of its plump surface, wear resistance, impact resistance, yellowing resistance, ultraviolet aging resistance, never hardening and its long-term stability. Two-component PU adhesive is clear and transparent, resistant to ultraviolet rays and suitable for outdoor use. Manual glue dripping and machine glue dripping can be used.
recommended use:
1) it is suitable for adhesive, PVC film, plastic, glass, metal and other trademarks.
2) it is especially suitable for waterproof packaging of led soft light strips.
note: manual mixing will inevitably introduce bubbles, so vacuum is needed for defoaming. Hand-dripping PU is slow, which requires high environmental humidity, and the relative humidity should be between 4 and 6, so as not to foam.
PU glue is easy to absorb water and deteriorate, so it should be sealed and stored, and sealed after use. It is best to have a dehumidifier in the glue dripping workshop, instead of stirring with a stick with moisture such as a wooden stick. The substrate should be dry, and avoid using glycerin-containing ink.
[ Precautions for use ]
1. Weighing and mixing: The above products are all two-component materials, and the mixing ratio is calculated by weight. Accurate mixing ratio is very important (too much component A leads to foaming at the bottom and too much component B leads to sticky surface). When stirring, please stir slowly in the same direction to avoid a large number of bubbles. When stirring, make sure that component A and component B are mixed evenly. If it looks like there are many filaments with naked eyes, it needs to be stirred patiently until it is completely transparent. If the mixing is not uniform, it will cause the rubber surface to stick and ripple.
2. bubble removal method: the most effective method is to vacuum the prepared glue solution or drip it by machine.
3. safety: this product (especially component b) may cause allergy when it comes into contact with the skin. please try to prevent the skin from coming into contact with this product. If it comes into contact, please wash it with plenty of water.
4. storage life: component a and component b can be stored separately in a dry and cool sealed container for six months.