DERFLEX is very strict in every PVC flex banner production. We tests the weight in every 10 rolls, The weight durance is + or - 10gsm.
the main testing method is to cut 30 pieces of the same product 0.01 sqm, from different conner of the roll, and test the total weight of 10 pieces, 3 times, get the average sqm weight.
Today we are testing the 230gsm cold laminated frontlit banner for Egypt customer. And the data is same as per order.
PVC laminated frontlit banner with low weight can be used for temprary outdoor advertising, hand flags, etc.