Fire ratings for display textiles: EN 13501-1 vs NFPA 701
Most display polyester is not flame retardant as it comes. It's treated to order, with its own lead time, cost and certificate. “FR” with no named standard behind it is not evidence of anything.
Insights
Fabrication
Fire ratings for display textiles: EN 13501-1 vs NFPA 701
Most display polyester is not flame retardant as it comes. It's treated to order, with its own lead time, cost and certificate. “FR” with no named standard behind it is not evidence of anything.
Roll width, seams, and when you really need 500 cm
You need a wider roll than the finished graphic — hems and silicone beading eat the edge. And before accepting a seam, check whether rotating the artwork lets it come off the roll whole....
Shrinkage: the 2% that ruins a tension frame
A 3 m graphic on a fabric that shrinks 2.7% comes off the calender 81 mm short. On one that shrinks 0.9% it's 27 mm short. Both are on spec. Only one goes into...