Commercial Grade Retroreflective Sheeting - Specifications

A. PHYSICAL PROPERTIES:
Property	Test Method	Results
Average Thickness	Micrometer	4.5 mil
Average Gloss	Glossmeter 85	96
Tensile strength	T-Strography at 30cm (12")/minute	5.0 kg (11 lb)
Elongation	T-Strography at 30cm (12")/minute	24%
Humidity Resistance	100% humidity at 27º C (81º F) for 72 hours	No effect
Cold Resistance	72 hours at -56.6º C (-70º F)	No effect
Heat Resistance	72 hours at 71.1º C (160º F)	0.3mm (0.012" maximum shrinkage from edge of panel)
Adhesion	180º pullback at 30cm (12")/minute	Minimum 2kg/2.5cm (4.4ppi) pulling strength at 23º C (74º F)
90º Peeling Test	0.8kg (1.8 lb.) weight suspended for 5 minutes	3mm (0.12") maximum peeling
Accelerated Weathering	Sunshine Weather-O-Meter for 2,000 hours	*No visible cracks, bubbles or puckering *Less than 0.2mm (0.008") shrinkage *Reflectivity up to 50% greater than min required of all known specifications No significant color change
Salt Spray Effects	3% concentration at 35º C (95º F) for 500 hours	No effect
CHEMICAL RESISTANCE

Chemical Agent	Exposure Time	Results
Water	1 month	No effect
10%Hydrochloricc Acid Solution	10 minutes	No effect
10% Sodium Chloride Solution	1 month	No effect
Methyl Alcohol	1 minute	No effect
Kerosene	10 minutes	No effect
Turpentine	1 minute	No effect
Xylol	1 minute	No effect

 
NOTE: Neither FP-79 nor FP-85 contains requirements of chemical resistance because such requirements are not relevant to traffic control signs or devices.