Product Features :
K-303 is dedicated to the adhesive acrylic (PMMA) or acrylic adhesive between the glass and metal between the high adhesive strength, e.g., acrylic billboards, adhesive acrylic products , but also for other transparent plastics such as PC , PVC, PS, ABS and other plastics adhesive fixing , bonding with excellent results, such as plastic boxes, plastic products , such as bonding.
Key performance indicators :
Appearance: pale transparent liquid
Viscosity cps: 550 ± 100 (Brookfield DV-II viscometer at 25 ° C , SC 4-15 rotor )
Hardness ( Shore D): 53 (GB / T 531-1999 curing test )
Typical curing nature:
K-303 will be cured under ultraviolet light , the sun will slowly solidified . 220-260nm light source helps surface cure .
Cure rate , depth, and ultimately curing effect is dry and UV light source , exposure time , light transmittance related material . Suggested by experiments to determine the final curing process .
Positioning time :
6s-125W PHILIPS high-pressure fluorescent lamp , 4.5 mW / cm ⊃2; UVA 3mm thick PMMA / PMMA
Typical cured properties:
Tensile shear strength (GB 7124-86) overlapped area of 25 × 5 = 125mm2: PS / PS ,4-5MPa destroy both PS 30 ° C
Use these steps:
1 Depending on the material surface treatment , surface dry and clean , no weak boundary layer ;
2 interface adhesive bonding material on the need for continuous coating, be careful not to disperse ;
3 light positioning the glue into the short ultraviolet curing lamp radiation, until the hand nudging fixed;
4 to remove the excess glue with a knife to scrape the glue overflow , or a soft cloth , paper towel and gently erase the excess glue can also be dipped in acetone, alcohol wipe ;
5 full cure time high radiation , until fully cured , note the temperature is not too high ;
6 dipped in acetone, alcohol, cleaning materials with a soft cloth or paper towel and gently wipe the bonding good material .
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