Rowmark DurMark is a durable, chemical-resistant two-ply acrylic developed for demanding indoor and outdoor applications. The material features a 100% acrylic matte, non-glare cap layer bonded to an impact-modified core for added strength and wear resistance. It is designed for both laser and mechanical engraving, offering excellent weather and UV resistance.

Material & Construction

Base material: UV-stable, impact-modified acrylic (laminated acrylic)
Layer structure: 2-ply composite
Cap layer: Chemical-resistant acrylic cap with matte, non-glare finish
Core: Modified acrylic for increased impact resistance

Physical & Mechanical Properties

Thickness:
• 1/16" (±1.6 mm)
• 1/8" (±3.0 mm)

Standard sheet size: 24" × 48" (610 mm × 1219 mm)
Engraving depth: ±0.005" (±0.13 mm)

Mechanical values (indicative):

• Surface resistivity: ≥10¹² Ohm/□

• Tensile strength: ±5,500 psi

• Flexural strength: ±10,300 psi

• Impact strength (Notched Izod): ~1.10 ft·lbs/in

• Heat deflection temperature: ±180 °F (±82 °C)

• Vicat softening point: ~208 °F (±98 °C)

• Rockwell hardness: ±M45

• Specific gravity: ±1.15 g/cm³

• Coefficient of thermal expansion: ~5.6×10⁻⁵ in/in/°F

Processing & Fabrication

DurMark can be:

• Laser engraved with a CO₂ laser (diode laser in some cases)

• Rotary engraved (router or milling cutter)

• Sawed, drilled, cut, sheared or punched

• Thermoformed (softening from ~82 °C)

• Bonded to itself or other materials

• Suitable for screen printing, hot stamping and other finishing techniques

Note: Light colours such as white may be less suitable for diode lasers due to reflective properties.

Applications

DurMark is ideally suited for:

• Indoor and outdoor signage

• Control panels and equipment ID tags

• Safety and industrial labels

• Nameplates, badges and compliance markings

Rowmark DurMark – Technical Table

Property | Specification
Product name | Rowmark DurMark
Material | UV-stable, impact-modified acrylic (laminated acrylic)
Structure | Two-ply (2-ply)
Cap layer | Matte, non-glare, chemical-resistant acrylic cap
Core | Modified acrylic for enhanced durability
Finish | Matte / non-glare
Standard sheet size | 24″ × 48″ (~610 × 1219 mm)
Available thicknesses | 1/16″ (~1.6 mm), 1/8″ (~3.2 mm)
Typical engraving depth | ±0.005″ (~0.13 mm)
Laser/engraving methods | CO₂ laser, rotary engraving, router, milling, etc.
Applications | Indoor & outdoor signage, control panels, ID tags, safety signage, industrial use

Physical & Mechanical Properties

Parameter | Typical value | Test method
Impact strength (Izod, notched) | 1.10 ft-lbs/in | ASTM D-256
Tensile strength (to break) | ~5,500 psi | ASTM D-638
Elongation at break | ~50% | ASTM D-638
Flexural strength | ~10,300 psi | ASTM D-790
Rockwell hardness | ~M45 | ASTM D-785
Density (ρ) | ±1.15 g/cm³ | ASTM D-792
Heat deflection temperature | ~180 °F (~82 °C) | ASTM D-648
Vicat softening point | ~208 °F (~98 °C) | ASTM D-1525
Coefficient of thermal expansion | ~5.6×10⁻⁵ in/in/°F | ASTM D-696
Electrical resistance | ≥10¹² Ohm/□ | ASTM D-495

Performance & Certifications

• UV resistance: Very good – suitable for outdoor use

• Chemical resistance: Cap layer resistant to many chemicals

• Fire rating: UL94-HB approved (Yellow Card E354751)

• RoHS compliant: Yes (PVC-free, no phenol/formaldehyde)

• Colour fastness: ≥2+ years outdoors (indicative, UV resistant)

These engraving sheets can be cut to any required size by AdFortem.
If required, the sheets can be supplied with a 3M self-adhesive backing.