Rotomolding Playground & Public Infrastructure — Color + FR + UV Solutions

🎠 Rotomolding Playground & Public Infrastructure

Children's slides, swings, kayaks, waste bins, portable toilets, isolation barriers, outdoor seating — vivid colors that must not fade, flame-retardant safety and long-term UV resistance — Tiangang provides an integrated "color stability + flame retardancy + weather resistance" solution.

1. Operating Conditions of Playground / Public Facilities

Vivid colors: children's equipment often uses bright red, yellow, blue and green, requiring more than 5 years without fading
High UV exposure: open outdoor areas without shade, exposed to the sun all day
Safety requirements: children's products are often required to be flame retardant (UL94 V-2/V-0, GB 6675)
Touch abrasion: frequently touched and gripped, requiring sweat and saliva resistance on the surface
Anti-static: playground equipment generates static electricity, so surface resistance must be taken into account
Low odor: children's products and outdoor seating require low VOC and low odor

2. Tiangang Recommended Solutions

Solution A: Children's slides / swings (color + flame retardancy + UV resistance) — Tiangang Top Pick

Component	Model	Recommended Dosage	Function
Compounded light stabilizer package	HS-362	0.30%	Light stabilization + antioxidation + processing stability solved in one package; staged interception of ageing avoids the "strong early, empty late" profile
Polymeric NOR halogen-free flame retardant	FR-810A	8~14%	Flame retardancy + light stabilization + long-term heat stability in one product; V1 flame retardancy at low loading, low smoke, low toxicity and low migration
Improved pigment dispersion (optional)	AO-427	0.15%	Raises the tinting strength of color pastes / pigments in the PE matrix and reduces batch-to-batch color difference — the property most closely watched for colored slides

Why FR-810A is the optimal choice for these articles: articles such as children's slides usually require flame retardancy grade + outdoor weathering at the same time. The conventional approach is to stack a flame retardant and a UV system, which is costly and the two may interfere with each other. FR-810A is based on the proprietary NOP™ platform and is a truly polymeric high-molecular structure (not a single-molecule compound), with low volatility, low migration and low extraction — one product grade satisfies both requirements, and thanks to its low-migration characteristics it complies with FDA / REACH / TSCA, which suits the demanding scenarios of children's and food-contact articles. Conventional single-molecule NOR flame retardants recommend a processing temperature of 250℃ or below, whereas FR-810A keeps a larger thermal stability margin inside the 250℃ rotomolding window.

Solution B: Colored light-shade articles (yellowing control, anti-fading)

Light shades (white, beige, light blue) are extremely sensitive to color staining by light stabilizers — conventional single-molecule HALS may cause slight yellowing of the article. Tiangang's answer is to switch to methylated HALS with low acid interaction and pre-blended one-pack systems, instead of compromising with a "low-dose single molecule":

Component	Model	Recommended Dosage	Function
Methylated hindered amine one-pack	HS-330	0.25~0.35%	Oligomeric methylated hindered amine (Me-HALS), high molecular weight, low acid interaction; molecular weight > 2000, softening range 100~135℃, 10% weight loss > 350℃
General-purpose one-pack (alternative)	HS-962	0.25~0.30%	Synergy of light stabilization and antioxidation, staged interception, dual protection during processing and in service; contains a low-molecular-weight component responsible for initial color stability
Improved pigment dispersion	AO-427	0.15%	Reduces batch-to-batch color difference and improves the appearance consistency of light-shade articles

Solution C: Outdoor waste bins / isolation barriers / crash barrels (dark colors, high UV exposure)

Component	Model	Recommended Dosage	Function
Compounded light stabilizer package	HS-962	0.30%	General outdoor workhorse solution; in dark carbon-black systems the dosage may be reduced to 0.20% (carbon black itself is a strong UV screener)
Cost-sensitive large parts	HS-300	0.30%	High-molecular-weight low-basicity hindered amine with high effective nitrogen content, effective at low dosage (0.1~0.8% recommended); it can also enhance the color performance of pigmented articles
Granular additive package (no weighing)	T-70	1.0%	Granular form at 50%±2.5% concentration, which can be pre-mixed with the resin and fed directly, saving process steps

Solution D: Outdoor furniture / tables and chairs / planters (landscape parts)

Component	Model	Recommended Dosage	Function
Synergistic blend package	HS-791	0.30%	Synergistic blend of HS-944 and HS-770, a high-molecular-weight plus low-molecular-weight two-tier configuration, a general balanced formulation
Ultra-low migration / long-term immersion	HS-788	0.30%	Oligomeric hindered amine light stabilizer synergistic blend, high molecular weight, for planters and other articles soaked in water for long periods
Masterbatch solution (small and medium plants)	MB0607-1	2~4%	Active HALS 15% + active antioxidant 5%, ready to use straight from the bag

3. Typical Application Scenarios

🎠 Children's slides

HS-962 + UV-327 + FR-810A flame-retardant system, no fading for 5 years

🛝 Swings / seesaws

HS-944 + UV-326 + AO-B215, abrasion and sweat resistance

🚣 Kayaks

XT-8 + HS-950, seawater and UV resistance, 10-year warranty

🗑 Waste bins

HS-962 + UV-326, suitable for both black and colored parts

🚧 Isolation barriers / crash barrels

HS-962 + UV-326 + impact modification

🚽 Portable toilets

XT-8 + HS-944, urine and detergent resistance

📂 Other rotomolding scenarios

← Back to the rotomolding application overview 💧 Rotomolding water tanks and storage containers ⛽ Rotomolding fuel tanks and industrial components

Need a custom formulation for playground or public infrastructure?

Tiangang has complete test-support capability for UL94, GB 6675 and other standards, and can help you obtain compliance certification in your target market.

Contact the technical team →

Technical reviewTiangang Technical CenterVersion2026-11-07

Specifications and application notes on this page are compiled from Tiangang's published technical data. Actual values are governed by the COA shipped with each lot and the technical agreement confirmed by both parties.

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National High-Tech Enterprise
Vice Chairman Unit, China Plastics Processing Industry Association (CPPIA)
Vice Chairman Unit, Agricultural Plastics Branch, China Agricultural Plastics Application Technology Society
Member, Ageing Methods Subcommittee, National Technical Committee on Plastics (SAC/TC15/CS5)
Member, Society of the Plastics Industry (SPI), USA

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