Heavy Duty Stick-On, uses a heavy coat rubber adhesive.
ULTRAMATE® is a 50mm wide fastener with 5 metres of both hook and loop sides in Black.
When extra strength is required VELCRO® brand Heavy Duty tape provides just that. Incorporating a 50% stronger closure by using a hook system that is formed to face both ways, instead of the conventional tape having hook sides facing only one direction. The high tack adhesive has been double coated boasting some serious strength it's also water-resistant and so able to cope with your most demanding projects. Heavy Duty can be used almost anywhere indoors and can also be used outdoors provided it is not under direct exposure to the weather. 50mm wide and 5m long of each hook and loop side (5 metres of hook and 5 metres of loop).

VELCRO® Brand fasteners with heavy coat rubber adhesive for extreme holding power, application and substrate chart:
Application Instructions:
1. Clean and dry surface before application
2. Peel tape from fastener and press firmly into place
3. Adhesive reaches maximum strength after 24 hours
Note: Not recommended for fabrics, dashboards, flexible vinyl or underwater use. Continued exposure to full sunlight can damage fastener.
Substrate
VELCRO® Brand PS51/52 Rubber Resin Adhesive
Polyethylene (PE, PELD, PEHD)
Suitable
With Reservation
Not Suitable