overview
DM3910 Prism Delineation Reflective Sheeting is designed for flexible delineators, post cones, guardrail delineators, and barrier covering delineators.
Product Structure
The DM3910 features a smooth, high-brightness, abrasion-resistant, weather-resistant, and UV-resistant microprismatic retroreflective layer.
Reflective performance
DM3910 complies with ASTM D4956 Type V and has a minimum retroreflection coefficient as shown in the table below when tested according to ASTM E810 (Standard Test Method for the Coefficient of Retroreflection of Reflective Sheeting Utilizing Coplanar Geometry).
Chromaticity
The daytime and nighttime color of DM3910 has been tested according to ASTM D4956 standard and meets the values in the table below. The color is white.
Adhesive layer
The adhesive layer is protected by a release liner that is peeled off before use to prevent direct contact with water, solvents, etc. The 50 mm adhesive surface has adhesive strength that can withstand an excessive load of approximately 800 g for 5 minutes, so when performing the adhesion test of ASTM D4956 Section 7.5, which is the standard test for flat aluminum surfaces, do not peel off more than 50 mm.
Shock-resistance
The reflective sheeting will not crack or peel at the impact point when subjected to a 4 pound (1.82 kg) 16 mm sphere dropped with a torque of 100 in-lb (11.3 Nm) on a Gardner Multipurpose Impact Tester IG-1120 in accordance with ASTM D4956 S2.2.1, at an ambient temperature of 23°C ± 2°C and 50% humidity for 24 hours.
Flexibility
DM3910 meets the flexibility requirements of ASTM D4956, Section 6.7 and S2.2.2. The product is very flexible and will not break even if bent for approximately 1 to 2 seconds using a 3.2 mm diameter rod.
Weather resistance
DM3910 meets the weathering standards of ASTM D4956, Section 6.4. The material is highly weather resistant and does not show any obvious cracks, peeling, pitting, seizing, edge lift or curvature, or expansion or contraction of more than 0.8 mm. The retroreflection coefficient measurement during outdoor exposure was performed at an observation angle of 0.20° and incidence angles of -4° and +30°, and the minimum retroreflection coefficient (RA) after weathering test was 80% of the value in the table above. When tested using a xenon arc weathering tester based on ASTM D4956, S3, DM3910 far exceeded the weathering requirements.
Solvent resistance
DM3910 will not dissolve, blister or wrinkle if wiped with a soft cloth moistened with kerosene, petrol, turpentine, varnish naphtha, ethanol or 5% HCL sodium hydroxide.
Near specular gloss
DM3910 has a specular gloss of not less than 40 when tested at an 85° angle according to ASTM D523.
Contractility
After storing the sheet at 23°C ± 2°C and 50% relative humidity for at least 1 hour, remove the release liner from a reflective sheet specimen measuring approximately 230mm x 230mm and place it on a flat surface with the adhesive side up. After removing the release liner, measure the change in the area of the specimen 10 minutes and 24 hours later. The specimen area will not shrink by more than 0.8mm in 10 minutes, or 3.2mm in 24 hours.
DM3910 will not dissolve, blister or wrinkle if wiped with a soft cloth moistened with kerosene, petrol, turpentine, varnish naphtha, ethanol or 5% HCL sodium hydroxide.Apply
The reflective sheeting can be applied to any smooth, clean, dry surface between 10° and 38° Celsius.
Abrasion resistance
If reflective sheeting is to be used in the most severe environments where wear and tear is likely to occur, such as roadside delineators, the following steps should be carried out to assess it:
- It divides an area of 50mm x 50mm.
- The retroreflection coefficient at a test observation angle of 0.20° and incident angle of -4° is measured and recorded.
- Using a benchtop sandblaster such as Buffalo Dental, hold the sample specimen in a Venturi chamber at a distance of 150mm + 10mm.
- The sand medium is sprayed continuously for 20 seconds at a pressure of 65+5 psi (448+35 kpa).
- The test specimen is removed from the chamber, the polishing media is thoroughly removed, and the reflective sheet surface is checked for damage or discoloration, and the retroreflectance is measured and recorded again using method 2).
- After testing, the specimens retain 80% of the retroreflectivity as specified in the table above. No noticeable discoloration or fading is observed on the specimens.
Weather resistance of reflective materials
The description of the assessment procedure and years of use are based on the manufacturer's knowledge and practical experience. This data is intended only as a source of information and is provided without warranty and does not constitute a guarantee. Since applications under various circumstances are possible, the customer must independently determine the suitability of this material for his or her specific purpose before use. We cannot be held responsible (monetary compensation, etc.) for any damages arising from the purchase or use of the product.