PMMA-UV
GB GB/T 7134-2008 Type 3
PMMA-UV is PMMA with an enhanced UV stabiliser package for long-term outdoor exposure without yellowing or loss of light transmission, supplied to GB/T 7134-2008 Type 3.
Reference datasheet — PMMA-UV is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the Cast condition
PMMA-UV grades and fills
PMMA-UV is supplied in 6 conditions, soft to hard. Cast is the default FabDigit quotes; the values on this page are for it.
Compare all 6 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Impact-modified UV-stabilized acrylic | Pick the acrylate core-shell impact-modified version for outdoor signs, machine covers and guard panels exposed to knocks; elongation reaches 40 % but tensile drops to 50 MPa. | 50 | 40 | 60 HRM | |
Flame-retardant UV-stabilized acrylic sheet | Use where transparent weather-exposed panels must meet building fire ratings or vehicle interior/exterior burn classes; tensile falls to 60 MPa and elongation to 3.5 %. | 58 | 60 | 3.5 | 87 Shore D |
Extruded sheet, UV-stabilized | Choose the extruded sheet for high-volume light boxes and thermoformed parts: tighter thickness tolerance, lower cost and lower forming temperature, at 68 MPa tensile and 70 °C service. | 68 | 4.5 | 90 HRM | |
UV-filtering / museum glazing grade | Choose the museum glazing grade with high UV-absorber loading to block more than 98 % of UV and stop artwork, exhibits and interiors fading, while the sheet itself stays weather-resistant. | 71 | 74 | 4 | 89 Shore D |
UV-stabilized injection-molding pellet grade | Choose the UV-stabilized pellet grade when the weather-resistant part is injection moulded, such as headlamp covers, solar accessories and outdoor lenses at 72 MPa tensile. | 72 | 4 | ||
CastDefault As cast | Default choice: use cell-cast sheet (GS) for outdoor signage and glazing needing the highest molecular weight, best weathering and solvent resistance, and flame-polishable edges. | 75 | 4.5 | 95 HRM |
Supply forms, finishes and certifications
Ways PMMA-UV is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
HC | Abrasion-resistant hard-coated UV sheet | Surface finish |
What is PMMA-UV?
PMMA-UV is PMMA with an enhanced UV stabiliser package for long-term outdoor exposure without yellowing or loss of light transmission, supplied to GB/T 7134-2008 Type 3. It offers 75 MPa tensile strength, 4.5 % elongation, a maximum service temperature of 80 °C, machinability 80 and formability 65, in cast, extruded, injection-moulding, FR, UVA, hard-coated and mould-grade versions. It remains brittle and notch-sensitive, is capped at 80 °C, and stress-cracks with alcohol- or ammonia-based cleaners. PMMA-HI is the alternative where impact matters more than weathering. PMMA-UV has a density of 1.19 g/cm³ (0.043 lb/in³), heavier than 53% of polymer grades. Its glass-transition temperature is 110°C (230 °F). PMMA-UV has a yield strength of 72 MPa (10.4 ksi) and a tensile strength of 75 MPa (10.9 ksi) — stronger than 82% of polymer grades. Elongation at break is 4.5% and the elastic modulus is 3.3 GPa (0.479 Msi).
What is PMMA-UV used for?
- Outdoor signage
- Solar collector glazing
- Greenhouse panels
- Outdoor advertising displays
Advantages
- Polishes to a fine finish — 96/100, better than 99% of polymer grades
- Good UV / weathering resistance — 96/100, better than 98% of polymer grades
- Easy to machine — 80/100, better than 84% of polymer grades
- High strength — 72 MPa (10.4 ksi), better than 82% of polymer grades
- Stiff — 3.3 GPa (0.479 Msi), better than 80% of polymer grades
Limitations
- Low fracture toughness — 1.2 MPa·√m (1.09 ksi·√in), worse than 77% of polymer grades
- Limited ductility — 4.5%, worse than 75% of polymer grades
PMMA-UV properties
Typical room-temperature values for PMMA-UV-Cast; bars are the position among polymer grades.
Physical6
PMMA-UV has a density of 1.19 g/cm³ (0.043 lb/in³), heavier than 53% of polymer grades. Its glass-transition temperature is 110°C (230 °F).
Mechanical16
PMMA-UV has a yield strength of 72 MPa (10.4 ksi) and a tensile strength of 75 MPa (10.9 ksi) — stronger than 82% of polymer grades. Elongation at break is 4.5% and the elastic modulus is 3.3 GPa (0.479 Msi).
Thermal11
PMMA-UV is rated for continuous service to 80°C (176 °F). It conducts heat at 0.19 W/m·K (0.11 BTU/hr·ft·°F), worse than 68% of polymer grades. Thermal expansion is 70 µm/m·K (38.9 µin/in·°F).
Electrical7
PMMA-UV is an electrical insulator with a dielectric strength of 25 kV/mm (635 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (78/100), worse than 61% of polymer grades. UV resistance is excellent.
Sustainability4
Producing a kilogram of PMMA-UV takes about 103 MJ of energy and emits 5.5 kg of CO₂ — less than 54% of polymer grades. Typical recycled content is 2%.
Manufacturability7
PMMA-UV's machinability is very good (80/100, better than 84% of polymer grades); weldability good (60/100); formability good (65/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PMMA-UV is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PMMA-UV
Is PMMA-UV easy to machine?
Dry-cut with sharp single-flute or polished-flute cutters at high spindle speed and low feed; regrind drills to zero rake so they do not grab and break out the exit edge. Anneal at 80 °C for 1–2 h per mm after machining to remove the stress-cracking risk.
Can PMMA-UV be welded?
Structural parts cannot be fusion welded; bond with dichloromethane/MMA monomer cement or two-part acrylic adhesive. Hot-gas and ultrasonic welding are usable but give brittle joints.
Can PMMA-UV be formed, bent or molded?
Thermoform at 150–175 °C (lower end for extruded sheet, upper end for cast) after several hours of drying at 80 °C. Dry moulding pellets 3–4 h at 80–100 °C and avoid overheating, which degrades the melt and produces gas streaks.
PMMA-UV chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| methyl acrylate / ethyl acrylate comonomimproves thermal stability during extrusion | 0 – 4 | 1 |
| UV absorber (benzotriazole / benzophenoncore component of the weathering package | 0.1 – 1 | 0.4 |
| HALS light stabilizer | 0.05 – 0.5 | 0.15 |
| processing lubricant / release agentstearyl alcohol type, injection molding grades | 0 – 0.5 | 0.2 |
| methyl methacrylate (MMA) unitscast sheet near-homopolymer; extruded sheet has some comonomer | ≥ 95 (balance) |
What surface finishes work on PMMA-UV?
Edges can be flame-polished or diamond fly-cut to an optical surface. The sheet accepts screen printing, UV spray coating and vacuum aluminising; coatings and cleaners must be free of alcohol and ammonia to prevent stress cracking.
Equivalent designations
Standards and trade names that resolve to PMMA-UV in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- GB (China)
- GB/T 7134-2008 Type 3
How much does PMMA-UV cost?
PMMA-UV is a standard-cost polymer ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PMMA-UV — frequently asked
What is PMMA-UV used for?
PMMA-UV is typically used for outdoor signage, solar collector glazing, greenhouse panels and outdoor advertising displays. In short: weathering-grade acrylic sheet; 80 °C service limit; no outdoor yellowing.
What is the yield strength of PMMA-UV?
PMMA-UV has a typical yield strength of 72 MPa (10.4 ksi) and a tensile strength of 75 MPa (10.9 ksi) — stronger than 82% of polymer grades. Strength varies by condition: see the 6 listed tempers.
Is PMMA-UV easy to machine?
Yes — machinability is rated very good (80/100, better than 84% of polymer grades). Dry-cut with sharp single-flute or polished-flute cutters at high spindle speed and low feed; regrind drills to zero rake so they do not grab and break out the exit edge. Anneal at 80 °C for 1–2 h per mm after machining to remove the stress-cracking risk.
Can PMMA-UV be welded?
Yes — weldability is rated good (60/100). Structural parts cannot be fusion welded; bond with dichloromethane/MMA monomer cement or two-part acrylic adhesive. Hot-gas and ultrasonic welding are usable but give brittle joints.
What surface finishes work on PMMA-UV?
Edges can be flame-polished or diamond fly-cut to an optical surface. The sheet accepts screen printing, UV spray coating and vacuum aluminising; coatings and cleaners must be free of alcohol and ammonia to prevent stress cracking.
Can PMMA-UV be formed, bent or molded?
Thermoform at 150–175 °C (lower end for extruded sheet, upper end for cast) after several hours of drying at 80 °C. Dry moulding pellets 3–4 h at 80–100 °C and avoid overheating, which degrades the melt and produces gas streaks.
What is the maximum service temperature of PMMA-UV?
PMMA-UV is rated for continuous use to about 80°C (176 °F), and briefly to 95°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between PMMA-UV Cast and PMMA-UV FR?
Cast is the default condition — default choice: use cell-cast sheet (GS) for outdoor signage and glazing needing the highest molecular weight, best weathering and solvent resistance, and flame-polishable edges. FR: use where transparent weather-exposed panels must meet building fire ratings or vehicle interior/exterior burn classes; tensile falls to 60 MPa and elongation to 3.5 %. Yield strength is 72 MPa in Cast versus 58 MPa in FR.
How much does PMMA-UV cost?
PMMA-UV is a standard-cost polymer ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ISO 7823-1 Poly(methyl methacrylate) sheets — cast sheets — ISO (2003)
- ASTM D4802 Poly(methyl methacrylate) Acrylic Plastic Sheet — ASTM (2021)
- PLEXIGLAS GS / XT cast & extruded sheet data — Röhm GmbH (2023)
- ACRYLITE sheet and molding compound technical data — Mitsubishi Chemical (2023)
- CAMPUS plastics — PMMA property tables — CWFG (2024)
- Engineered Materials Handbook Vol.2: Engineering Plastics — ASM International (1988)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.