Name: PP Hollow Plastic Formwork Board - 15mm, 18mm, 20mm Supplier
Brand: RaxPanel
Availability: MadeToOrder

PP Hollow Plastic Formwork

PP Hollow Plastic Formwork provides an energy-saving, environmentally protective alternative to traditional wood, steel, and bamboo formwork systems. Manufactured from polypropylene (PP), the thermoplastic polymer features a hollow core structure that reduces weight while maintaining structural performance. Enhanced variants incorporate continuous fiberglass-reinforced material for increased strength and durability.

The formwork delivers exceptional reusability with over 50 cycles possible, along with resistance to moisture, corrosion, and chemicals. The non-hygroscopic material maintains dimensional stability from -20°C to +60°C and weighs approximately 29kg for a 1220x2440mm panel at 18mm thickness. Performance specifications include bending strength exceeding 25MPa and modulus reaching over 1800MPa.

Standard panel sizes of 1220x2440mm and 915x1830mm accommodate walls, columns, slabs, beams, tunnels, bridges, and culverts. Installation mirrors wooden formwork methods with panels positioned perpendicular to supports and joints sealed with tape. No release agent is required due to the non-stick surface, and fastening uses 30-35mm nails.

Quality assurance includes flexibility, impact strength, and thermal shrinkage testing. Customization options cover dimensions, color, and surface texture, with modifications possible using standard woodworking tools. The lightweight design reduces labor requirements while maintaining compatibility with other formwork materials.

Economical PP Hollow Plastic Formwork Solutions by RaxPanel

RaxPanel is a trusted manufacturer of PP hollow plastic formwork for construction in China, helping businesses achieve efficient results. With over 20 years of experience in custom composite panel solutions, our Hebei-based factory leverages in-house R&D and production capabilities to deliver durable, high-performance formwork that meets rigorous project demands. Our cost-effective and reusable panels are engineered to ensure superior project performance and significant budget savings.

Each RaxPanel PP hollow plastic formwork undergoes strict quality tests to guarantee durability and reliability. The tests include:

flexibility
impact strength
shrinkage
nail-holding assessments

Designed for reuse over 50 times, these lightweight panels reduce handling effort and labor costs while supporting sustainable construction through recyclability and waste reduction. Suitable for walls, columns, slabs, and major infrastructure, our formwork combines ease of use with high load-bearing performance.

Contact us via WeChat, WhatsApp, or email to learn more. We welcome visits to our factory to see our production process and discuss how RaxPanel can support your next project.

Parameter	Value
Material Composition	Polypropylene (PP), often with additives for reinforcement and environmental resistance. Some variants include a surface layer of continuous fiberglass-reinforced thermoplastic (CFRT).
Standard Sizes	1220 × 2440 mm, 915 × 1830 mm
Available Thicknesses	12 mm, 15 mm, 18 mm, 20 mm
Weight (for 1220×2440×18mm panel)	29 kg
Weight per m²	8–10 kg/m²
Bending Strength	>25 MPa
Bending Modulus	>1800 MPa
Vicat Softening Point	150°C
Operating Temperature Range	-20°C to +60°C
Reusability (Number of Cycles)	>50 reuse cycles
Water Absorption	≤0.5%
Surface Treatment	Non-stick, no release agent required
Nail Holding Strength	Good (nails 30–35 mm recommended)
Impact Strength (Charpy Notched)	≥14 KJ/m²
Thermal Shrinkage	≤0.2%
Installation Note	Joints sealed with tape; hollow channels perpendicular to supports
Customization	Available in custom sizes, colors, and optional surface textures/patterns

Related Products

CFRT Sheets

FR4 Fiberglass Sheets

FRP/GRP Sheet

LWRT Sheets

Thermoplastic UD Tapes

Compact Laminate

PP Hollow Plastic Formwork

HDPE Sandwich Panel

PP Hollow Plastic Formwork Selection & Engineering Guide

Selecting the right specification for PP Hollow Plastic Formwork depends on matching structural load requirements, environmental exposure, and thermal R-value insulation goals. At RaxPanel, our engineering team manufactures high-performance composite panels to deliver durable, moisture-resistant, and energy-efficient solutions for industrial and commercial projects worldwide.

💡 Pro Tip: Delamination Prevention Under Thermal Cycling
At RaxPanel, we utilize automated vacuum lamination with high-performance two-component polyurethane adhesives to ensure a bond strength that absorbs differential thermal expansion without micro-delamination.

1. How to Choose the Right Skin Alloy and Thickness

Outer skin selection governs mechanical impact resistance, corrosion barriers, and structural stiffness across different operating environments.

2. How Well Does the Core Insulate and Withstand Heavy Loads?

The core material handles shear stress and maintains thermal R-value insulation across operating temperature ranges:

Performance Metric	RaxPanel Engineering Standard	Application Advantage
Outer Skin Spec	Pre-Painted Aluminum / GRP Sheet (0.3mm – 2.0mm)	High tensile strength and corrosion resistance
Thermal Conductivity	~ 0.020 – 0.038 W/m·K	Consistent R-value insulation & energy savings
Bonding Adhesive	Two-Component Polyurethane / Epoxy Adhesive	Delamination-free performance under freeze-thaw cycles

3. Which Surface Finish Will Protect Your Panels for 20+ Years?

Factory roller coating specifies long-term color stability, UV protection, and resistance against industrial pollutants or marine salt spray.

4. How Fire-Safe and Soundproof Are These Panels?

🛡️ Compliance & Acoustic Isolation:

Fire Safety: Formulations comply with EN 13501-1 Class B-s1,d0 and GB8624 Class B1 building fire safety standards.
Sound Damping: Composite core attenuates noise transmission by 24 dB to 30 dB relative to solid metal sheets.

5. Where Are PP Hollow Plastic Formworks Most Commonly Installed?

🏢 Commercial & Industrial Buildings

Exterior wall cladding, cleanroom partitions, and insulated roof envelopes.

🚚 Cold Storage & Transport Fleets

Refrigerated truck bodies, cold storage rooms, and RV composite walls.

6. How to Cut, Groove, and Seal Edges During Installation

Panels process easily on-site using standard CNC machinery, routers, or specialized edge profiles for airtight moisture sealing.

Frequently Asked Questions (FAQS)

1. What are the standard panel thicknesses, maximum lengths, and width options available for PP Hollow Plastic Formworks?

Standard panel thicknesses range from 10mm up to 150mm. Standard widths include 1000mm, 1220mm, and 1500mm, with maximum single-sheet lengths up to 5800mm (5.8m) to fit ocean freight container shipping dimensions.

2. What are the primary engineering benefits of using PP Hollow Plastic Formworks?

PP Hollow Plastic Formworks deliver an exceptional stiffness-to-weight ratio, rot-proof moisture resistance, reliable thermal insulation, and dynamic fatigue endurance for high-stress applications.

3. How do these composite panels perform under high humidity and outdoor weathering?

The closed-cell core prevents water logging and condensation absorption, while pre-painted skins provide a 20+ year weatherability barrier against UV degradation.

4. What fire safety ratings and quality certifications do these composite panels meet?

Flame-retardant formulations meet EN 13501-1 Class B-s1,d0 and GB8624 Class B1 fire performance standards. Manufacturing quality is governed under ISO9001 management systems, with raw material performance verified under SGS and CE testing.

5. What surface coating options are available for exterior UV protection?

70% PVDF Fluorocarbon Coating PVDF coating provides a 20+ year exterior weatherability warranty against UV fading and acid rain. FEVE offers high gloss retention, while PE coating is cost-effective for indoor partitions.

6. Can these composite panels be CNC grooved, bent, or edge-sealed on-site?

Yes. Pre-painted skins can be V-grooved at 90° or 135° on the reverse side using standard CNC routers or hand tools, allowing manual edge folding into architectural cassettes without surface paint cracking.

7. How are large panel shipments packaged to prevent freight damage during ocean transit?

Panels are packed with protective PE film on both skins, separated by inter-sheet foam layers, and secured on heavy-duty export wooden pallets or CKD steel crates to prevent shipping damage during 20ft and 40ft container freight.