Peel Ply is a fabric layer placed over a composite laminate before cure and removed afterward to leave a clean, textured surface ready for bonding, painting, or secondary lamination. Selecting the right Peel Ply grade affects surface preparation quality, release behavior, and how many times a single roll can be reused, which makes it an important specification decision for FRP and composite manufacturers.
Peel Ply Product Range and Specifications
The Peel Ply product line covers sixteen grades built on PET, PA66, PTFE-coated glass fiber, and silicone-coated bases, allowing fabricators to match surface finish, maximum use temperature, and release characteristics to their specific layup process.
| Grade | Weight | Width x Length | Base Materials | Coating | Max Use Temperature | Applicable Characteristics |
|---|---|---|---|---|---|---|
| PS100-85 | 90g/m² (2.42oz/y²) | 70.87in (1.8m) x 328ft (100m) | PET | / | 356°F (180°C) | Standard-cost grade |
| PS150-85 | 85g/m² (2.42oz/y²) | 70.87in (1.8m) x 328ft (100m) | PET&PA | / | 392°F (200°C) | Standard-cost grade |
| NS230-85 | 85g/m² (2.42oz/y²) | 70.87in (1.8m) x 328ft (100m) | PA66 | / | 428°F (220°C) | Higher temperature grade |
| NS230-105 | 105g/m² (2.99oz/y²) | 70.87in (1.8m) x 328ft (100m) | PA66 | / | 428°F (220°C) | Higher temperature grade |
| NL230-60 | 62g/m² (1.71oz/y²) | 59.1in (1.5m) x 328ft (100m) | PA66 | Si | 446°F (230°C) | Peels off easily |
| G234TFP-55 | 55g/m² (1.57oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | PTFE | 500°F (260°C) | Flexible |
| G234TFP-76 | 76g/m² (2.16oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | PTFE | 500°F (260°C) | High air permeability |
| G234TFP-150 | 150g/m² (4.27oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | PTFE | 500°F (260°C) | High strength, coarse grain |
| G234TFNP-75 | 75g/m² (2.13oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | PTFE | 500°F (260°C) | Airtight, flexible |
| G234TFNP-145 | 145g/m² (4.13oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | PTFE | 500°F (260°C) | Airtight |
| G234TFNP-260 | 260g/m² (7.39oz/y²) | 50in (1.27m) x 328.089ft (100m) | Glass fiber | PTFE | 500°F (260°C) | Airtight, high strength |
| FL400-125 | 300g/m² (3.26oz/y²) | 50in (1.27m) x 328ft (100m) | Glass fiber | Si | 752°F (400°C) | High temperature resistance |
| FL400-300 | 300g/m² (8.54oz/y²) | 50in (1.27m) x 164ft (50m) | Glass fiber | Si | 752°F (400°C) | High temperature resistance |
| GA005-013 | Thickness 0.005in (130µm) | 39.37in (1m) x 164ft (50m) | PTFE&Glass fiber | Silica gel | 500°F (260°C) | No residual glue, used repeatedly |
| GA005-018 | Thickness 0.007in (180µm) | 39.37in (1m) x 164ft (50m) | PTFE&Glass fiber | Silica gel | 500°F (260°C) | No residual glue, high strength, used repeatedly |
| INCAM005 | Thickness 0.005in (130µm) | 39.37in (1m) x 164ft (50m) | PTFE&Glass fiber | Silica gel | 500°F (260°C) | No residual glue, used repeatedly |
Grades using a PTFE or silicone coating carry a two-year storage life, while the GA005 and INCAM005 silica-gel-coated grades are rated for one year. Actual performance depends on mold shape, curing parameters, resin system, and laying method, so buyers should validate each grade under their own process conditions before volume ordering.
Choosing a Peel Ply Grade for Your Process
PS100-85 and PS150-85 are PET-based entry grades suited to standard oven cure processes up to 392°F (200°C). NS230-85 and NS230-105 step up to PA66 construction for a higher 428°F (220°C) rating, while NL230-60 adds a silicone coating that peels off the laminate easily after cure. For higher-temperature autoclave work, the glass-fiber G234TFP and G234TFNP series are PTFE-coated and rated to 500°F (260°C), with variants offering flexibility, high air permeability, airtightness, or higher strength depending on weight. FL400-125 and FL400-300 are silicone-coated, high-temperature glass-fiber grades rated to 752°F (400°C) for the most demanding autoclave cycles, and the GA005/INCAM005 silica-gel-coated PTFE and glass-fiber grades are designed for repeated, no-residual-glue reuse on tooling surfaces.
Applications in FRP and Composite Layup
Peel Ply is widely used in hand lay-up, vacuum infusion, filament winding, and autoclave processing of FRP parts for marine, pipe and tank, pultrusion, and wind energy applications, where it leaves a textured, contamination-free surface that supports secondary bonding, painting, or further lamination without additional sanding. Composite manufacturers can reference process and testing guidance from standards bodies such as the ASTM D20 Committee on Plastics alongside their own qualification testing when specifying surface preparation materials.
Because grade selection depends on resin system, cure temperature, and tooling geometry, this material is commonly ordered together with other auxiliary agent products such as release films, flow mesh, and breather fabrics used in the same vacuum bagging or autoclave layup.
Sourcing and Supply
Chemicalsstore.com supports overseas composite material buyers, FRP factories, boat builders, pipe and tank manufacturers, pultrusion factories, and filament winding manufacturers with supply chain resource support for Peel Ply and related vacuum molding auxiliary products. Buyers evaluating a grade for a new process are encouraged to request the technical data sheet for full performance indicators before finalizing an order.
Frequently Asked Questions
What is Peel Ply used for?
It is laid over a wet laminate before cure and peeled away afterward to leave a clean, textured surface ready for bonding, painting, or secondary lamination without additional sanding.
Which grade is rated for the highest temperature?
FL400-125 and FL400-300 are silicone-coated glass-fiber grades rated to 752°F (400°C), the highest maximum use temperature in this range.
Can Peel Ply be reused multiple times?
The GA005 and INCAM005 silica-gel-coated grades are specifically designed to leave no residual glue and can be used repeatedly on tooling surfaces, unlike the single-use PET and PA66 grades.
What base materials are available?
Options include PET, PET&PA, PA66, and PTFE-coated or silicone-coated glass fiber, each suited to a different combination of temperature rating and release characteristics.
How should this material be stored?
PTFE and silicone-coated grades carry a two-year storage life, while the silica-gel-coated GA005 and INCAM005 grades are rated for one year under normal storage conditions.
For technical data sheets, grade recommendations, or a quotation on Peel Ply for your next FRP or composite production run, contact our team through the inquiry form on this page.
