GSM is a proxy: what weight does and does not tell you
In Epic's own range the lightest and thinnest fabric has the highest breaking strength of all six. If you're choosing on gsm you're choosing on a proxy for properties printed two rows further down.
Insights
Spec sheets
GSM is a proxy: what weight does and does not tell you
In Epic's own range the lightest and thinnest fabric has the highest breaking strength of all six. If you're choosing on gsm you're choosing on a proxy for properties printed two rows further down.
Yellowing and ΔE: why discolouration shows backlit
ΔE is a single number for how far a colour has moved. Four fabrics all pass their yellowing limit; one clears it by 75% and one by 3%. Backlit, the visible threshold drops.
How to read a textile spec sheet
Read the method column first, the standard second, the result last. A result with no test method is a claim. And “exceeds standard by 84%” usually means the standard was set low.
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...
Light transmission or light shading: which number is on your spec sheet?
They are opposite measures of the same thing, and mixing them up ranks your options backwards. A fabric at 60% light shading passes less light than one at 48% light transmission. Six fabrics, normalised...