PVC-P CLR
Grade
ISO 1043 PVC-P
CLR = clear / transparent unfilled compound
Pick for sight-glass tubing, transparent hose and flexible windows where flow visibility is required.
Values for the CLR condition
Other PVC-P grades and fills
PVC-P is listed in 10 conditions; see the grade overview at PVC-P.
Compare all 10 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Cellular / foamed flexible PVC | Pick for weather-strip, sponge gaskets and cushioned profiles where compressibility and low weight matter. | — | 4 | 180 | 10 Shore D |
CLRThis page Clear / transparent unfilled compound | Pick for sight-glass tubing, transparent hose and flexible windows where flow visibility is required. | 8 | 16 | 320 | 28 Shore D |
Shore A 60 | Pick for very flexible tubing, soft hose and lay-flat film where drape matters more than strength. | — | 11 | 400 | 15 Shore D |
Shore A 70 | Pick for flexible cable jackets, gaskets and clear tubing needing a balance of softness and tear strength. | — | 13 | 350 | 22 Shore D |
Low-temperature grade | Pick for outdoor cords, refrigeration hose and cold-climate seals needing flexibility below −30 °C. | — | 13 | 350 | 23 Shore D |
flame-retardant / low-smoke compound | Pick for building wire, appliance cords and rail/transport parts needing UL 94 V-0 and reduced smoke. | — | 14 | 230 | 34 Shore D |
SHA80Default Shore A 80 | Default flexible PVC: wire insulation, hose, profiles and moulded plugs; best all-round property/price balance. | — | 16 | 300 | 30 Shore D |
Non-phthalate (DOTP/DINCH) plasticized | Pick where REACH/RoHS phthalate restrictions apply — toys, consumer cords, food-contact and EU market goods. | — | 16 | 300 | 30 Shore D |
105 °C heat-stabilized cable grade | Pick for automotive and appliance wiring rated 105 °C; uses trimellitate/polymeric plasticizer and boosted stabilizer. | — | 18 | 250 | 38 Shore D |
Shore A 90 | Pick for semi-rigid profiles, edge banding, shoe soles and stiff hose where shape retention is needed. | — | 22 | 240 | 40 Shore D |
What is PVC-P CLR?
PVC-P CLR is PVC-P in the CLR grade — pick for sight-glass tubing, transparent hose and flexible windows where flow visibility is required. PVC-P CLR has a tensile strength of 16 MPa (2.32 ksi), weaker than 72% of polymer grades. Elongation at break is 320% and the elastic modulus is 0.02 GPa (0.0035 Msi). PVC-P CLR has a density of 1.22 g/cm³ (0.0441 lb/in³), heavier than 61% of polymer grades. Its glass-transition temperature is -10°C (14 °F). SHA80 is the default condition FabDigit quotes; CLR is available on request or by drawing note.
Advantages
- Forms and bends easily — 94/100, better than 98% of polymer grades
- Readily welded — 92/100, better than 97% of polymer grades
- Low embodied carbon — 2.7 kg CO₂/kg, better than 87% of polymer grades
- Ductile — tolerates forming and impact — 320%, better than 82% of polymer grades
Limitations
- Difficult to machine — 35/100, worse than 84% of polymer grades
- Hard to polish — 30/100, worse than 82% of polymer grades
- High mold shrinkage — 2%, worse than 81% of polymer grades
- Poor heat conductor — 0.16 W/m·K (0.0924 BTU/hr·ft·°F), worse than 78% of polymer grades
- Limited service temperature — 70°C (158 °F), worse than 77% of polymer grades
PVC-P CLR properties
Typical room-temperature values for PVC-P CLR; 23 are specific to this condition. Other listed values are PVC-P reference data and may not represent this condition. Bars are the position among polymer grades.
Physical6
PVC-P CLR has a density of 1.22 g/cm³ (0.0441 lb/in³), heavier than 61% of polymer grades. Its glass-transition temperature is -10°C (14 °F).
Mechanical10
PVC-P CLR has a tensile strength of 16 MPa (2.32 ksi), weaker than 72% of polymer grades. Elongation at break is 320% and the elastic modulus is 0.02 GPa (0.0035 Msi).
Thermal9
PVC-P CLR is rated for continuous service to 70°C (158 °F). It conducts heat at 0.16 W/m·K (0.0924 BTU/hr·ft·°F), worse than 78% of polymer grades. Thermal expansion is 150 µm/m·K (83.3 µin/in·°F).
Electrical7
PVC-P CLR is an electrical insulator with a dielectric strength of 20 kV/mm (508 V/mil) and a resistivity of 1×10¹¹ Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (82/100), better than 56% of polymer grades. UV resistance is fair.
Sustainability4
Producing a kilogram of PVC-P CLR takes about 68 MJ of energy and emits 2.7 kg of CO₂ — less than 94% of polymer grades. Typical recycled content is 10%.
Manufacturability7
PVC-P CLR's machinability is fair (35/100, worse than 84% of polymer grades); weldability excellent (92/100); formability excellent (94/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PVC-P CLR
Is PVC-P easy to machine?
Machinable but gummy — use sharp positive-rake tools, high rake angles, generous chip clearance and low cutting speed with air cooling; die-cutting, slitting and waterjet are usually preferred over milling.
Can PVC-P be welded?
Excellent high-frequency (dielectric) and hot-air/hot-wedge weldability due to the polar C–Cl bond; solvent bonding with THF/MEK cements and hot-plate welding also work; avoid overheating, which liberates HCl.
Can PVC-P be formed, bent or molded?
Extruded, calendered, injection or dip-molded at 155–195 °C melt with mold 20–55 °C; keep residence time short and use stainless or hard-chromed, well-vented tooling since degradation releases corrosive HCl.
What surface finishes work on PVC-P?
Accepts embossing, printing with PVC-compatible inks and lacquer topcoats; surfaces should be cleaned of plasticizer bloom before bonding, and plasticizer migration must be checked against adjacent paints, PC/ABS parts and elastomers.
PVC-P 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 |
|---|---|---|
| plasticizer (DINP/DOP/DOTP/DINCH/trimelltypically 30–60 phr; sets hardness and Tg | 20 – 45 | 30 |
| filler (CaCO3)cost/stiffness modifier | 0 – 25 | 5 |
| heat stabilizer (Ca-Zn, Ba-Zn or organot | 1 – 5 | 2.5 |
| lubricant / processing aid | 0.2 – 1.5 | 0.6 |
| flame retardant / smoke suppressant (Sb2only in FR grades | 0 – 10 | 0 |
| pigment / UV stabilizer | 0 – 3 | 1 |
| PVC resin (polyvinyl chloride, K65–K70)suspension resin, K-value chosen by process | ≥ 50 (balance) | — |
PVC-P CLR — frequently asked
What is PVC-P CLR used for?
PVC-P CLR is typically used for electrical wire & cable insulation/jacketing, flexible tubing and hose, vinyl flooring and film/sheet and inflatable products and gaskets. In short: flexible, RF-weldable PVC; low-cost cable insulation; 300 % elongation.
What is the tensile strength of PVC-P CLR?
PVC-P CLR has a typical tensile strength of 16 MPa (2.32 ksi) — weaker than 72% of polymer grades. Strength varies by condition: see the 10 listed tempers.
Is PVC-P CLR easy to machine?
Not especially — machinability is rated fair (35/100, worse than 84% of polymer grades). Machinable but gummy — use sharp positive-rake tools, high rake angles, generous chip clearance and low cutting speed with air cooling; die-cutting, slitting and waterjet are usually preferred over milling.
Can PVC-P CLR be welded?
Yes — weldability is rated excellent (92/100). Excellent high-frequency (dielectric) and hot-air/hot-wedge weldability due to the polar C–Cl bond; solvent bonding with THF/MEK cements and hot-plate welding also work; avoid overheating, which liberates HCl.
What surface finishes work on PVC-P CLR?
Accepts embossing, printing with PVC-compatible inks and lacquer topcoats; surfaces should be cleaned of plasticizer bloom before bonding, and plasticizer migration must be checked against adjacent paints, PC/ABS parts and elastomers.
Can PVC-P CLR be formed, bent or molded?
Extruded, calendered, injection or dip-molded at 155–195 °C melt with mold 20–55 °C; keep residence time short and use stainless or hard-chromed, well-vented tooling since degradation releases corrosive HCl.
What is the maximum service temperature of PVC-P CLR?
PVC-P CLR is rated for continuous use to about 70°C (158 °F), and briefly to 100°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between PVC-P SHA80 and PVC-P CLR?
SHA80 is the default condition — default flexible PVC: wire insulation, hose, profiles and moulded plugs; best all-round property/price balance. CLR: pick for sight-glass tubing, transparent hose and flexible windows where flow visibility is required.
Sources
- ASTM D2287 — Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds — ASTM International (2019)
- ASTM D638 / D2240 / D624 test methods for tensile, durometer and tear — ASTM International (2022)
- Engineered Materials Handbook Vol. 2: Engineering Plastics — ASM International (1988)
- CAMPUS / UL Prospector plasticized PVC compound datasheets — CWFG / UL (2024)
- Flexible PVC cable and tubing compound datasheets (Teknor Apex, Benvic, Sylvin) — various compounders (2024)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.