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Specializing in the production of highquality silicone rubber products
PRODUCT
Specializing in the production of highquality silicone rubber products
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Flat-Emitting Surface Side-Lit Silicone Diffuser
Optical-grade platinum cured silicone diffuser featuring a flat-emitting surface and side-lit design. Flexible and bendable, it delivers uniform planar glow without hotspots. Withstands -40°C to +200°C, IP67 waterproof, 10,000h UV resistant. Ideal for architectural lighting, signage, channel letters, and retail displays. Custom profiles available. ISO 9001 certified
- Side-Emitting Design: Ensures uniform side illumination for LED strips.
- High-Quality Silicone: Durable, flexible, and resistant to yellowing and environmental factors.
- Easy Installation: Designed for a snug fit over LED strips, enhancing light diffusion.
- Versatile Applications: Ideal for indoor decor, architectural lighting, and custom LED designs.
Product Features
Application
| Baby Daily Necessities | State Grid | BS/COM/ESS | Optoelectronics industry |
| mechanical seal | New energy vehicles | Home appliance | Sports equipment |
- Parameters
- Side-Emitting Design: Ensures uniform side illumination for LED strips.
- High-Quality Silicone: Durable, flexible, and resistant to yellowing and environmental factors.
- Easy Installation: Designed for a snug fit over LED strips, enhancing light diffusion.
- Versatile Applications: Ideal for indoor decor, architectural lighting, and custom LED designs.
Product Features
Application
| Baby Daily Necessities | State Grid | BS/COM/ESS | Optoelectronics industry |
| mechanical seal | New energy vehicles | Home appliance | Sports equipment |
Yutian · Factory-direct manufacturer · 18+ years silicone extrusion expertise
Flat-Emitting Surface Side-Lit Silicone Diffuser
Planar glow LED profile · Optical-grade · Flexible · IP67 · 10,000h UV resistant
✓ Architectural lighting✓ Signage & channel letters✓ Retail displays
Uniform planar glowFlexible & bendableAnti-yellowingFree samples with COA
✅ Free samples with COA test report✅ Mass production matches sample – guaranteed✅ 1% daily penalty for delayed delivery✅ Engineer 1-on-1 selection guidance
Three factories · Full industry chain synergy
From silicone compounding to precision extrusion and profile finishing – three integrated factories ensure quality control at every stage.
🧪
Guilin Yutian
Silicone raw material
⚙️
Dongguan Huahong
Compounding & auxiliaries
🏗️
Dongguan Yutian
Precision extrusion & profile finishing
Raw materialCompoundingExtrusionProfile finishing
6,800m² production facility14+ extrusion lines50+ production team300,000m daily capacity
Why Yutian
Integrated manufacturing
Full control from raw silicone to compounding to finished profile – three factories, one chain.
Precision extrusion
6,800m² facility · 14+ lines · 300,000m daily capacity – ready for bulk orders.
Global certifications
ISO 9001 · RoHS · REACH · UL94 V-0 – compliance documentation available.
Fast turnaround
3‑day sampling · 7‑day delivery · custom profiles 48h design.
Custom engineering
Non‑standard shapes, sizes, hardness (30‑90 Shore A), colors – your drawing, our solution.
Export ready
Full documentation – customs clearance, certificates, third‑party test reports.
Key advantages
💡
Uniform planar glow – no hotspots, no glare
Side-lit design · flat emission face
This flat-emitting surface side-lit silicone diffuser effectively eliminates visible LED points, producing a soft, uniform glow across a planar face. Unlike rigid plastic diffusers that show individual LED dots, silicone's light-scattering properties blend discrete sources into a seamless beam.
→ Clean, professional lighting appearance
🔬
Optical-grade silicone – high transmission, controlled diffusion
Platinum cured · two-color extrusion available
Engineered with advanced light-diffusing technology, our silicone extrusion for LED lighting achieves excellent diffusion while maintaining high transmission. The two-color silicone extrusion with milky white top and black base provides controlled scattering.
→ Brighter, more comfortable illumination
🧴
Platinum cured – no odor, no volatiles
Medical-grade purity · optical clarity
Manufactured using platinum cured silicone – zero peroxide residues, zero odor, zero volatile compounds. Superior optical clarity with no haze from curing byproducts.
→ Pure light, pure material
🌡️
Wide temperature range – -40°C to +200°C
Thermally stable · no warp, no yellow
This high temperature silicone LED profile maintains shape and optical properties in extreme conditions. Unlike acrylic or polycarbonate that warp or yellow under heat, silicone performs reliably in high-temperature LED environments and freezing winters.
→ Reliable worldwide · any climate
☀️
UV resistant & anti-yellowing – 10,000+ hours proven
Maintains optical clarity for years
Our UV resistant silicone LED diffuser passes 10,000+ hours UV exposure testing (QUV ASTM G154) with no measurable yellowing. Retains clean appearance indoors, outdoors, or in sun-exposed locations.
→ Long-lasting beauty · less maintenance
🌀
Flexible & bendable – curve, shape, route
Bends without cracking
This flexible silicone LED diffuser tube bends effortlessly around curves, signage letters, architectural contours, and furniture edges while maintaining a flat emission face.
→ Design freedom · OEM ready
🌊
IP67 waterproof – outdoor & landscape ready
Optional waterproof rating
With optional IP67 waterproof rating, this diffuser provides protection against rain, dust, and humidity – critical for facade lighting, landscape illumination, and signage applications.
→ All-weather performance
📏
Fully customizable – any shape, any size, any profile
Custom extruded silicone LED profile
Available in flat strip, flat D-shape (270° wide-angle), flat with mounting base (180°), or custom profiles. Width 4-30mm, height 5-25mm, any length. Send your drawing for a free evaluation.
→ Tailored to your project
Customization process – fast & transparent
1
Send drawing / specs
→
2
1-day design
→
3
3-day sample
→
4
Approval
→
5
5-7 day delivery
Low MOQ · Existing tooling → free sample · New tooling → low cost, deductible
Technical specifications & custom range
| Parameter | Standard | Custom |
|---|---|---|
| Material | Platinum-cured optical-grade silicone | |
| Light-emitting surface | Flat (planar) | |
| Light direction | Side-lit – perpendicular to LED strip | |
| Emission angle | 120° / 180° / 270° | Custom |
| Light transmission | Up to 94% | Customizable |
| Light uniformity | ≥90% | — |
| Operating temperature | -40°C to +200°C | Extended |
| UV resistance | 10,000+ hours | — |
| Anti-yellowing | 1–3+ years | Extended |
| Profile width | 4 – 30 mm | Custom |
| Profile height | 5 – 25 mm | Custom |
| Hardness (Shore A) | 40 – 70 | 30 – 90 |
| Length | Up to 50m continuous rolls | Custom |
| Color | Milky white, translucent | Custom |
| IP rating | IP65 / IP67 | IP68 |
| Flame retardancy | UL94 V-0 (option) | |
Silicone vs. plastic – why silicone wins
| Property | Silicone | PC/PMMA | PVC |
|---|---|---|---|
| Flexibility | High – bends without cracking | Rigid – cracks under stress | Moderate |
| Temperature | -40°C to +200°C | Up to 80-100°C | Up to 60°C |
| UV resistance | Excellent – 10,000+ hours | Moderate – yellows | Poor – rapid yellowing |
| Anti-yellowing | Excellent | Moderate | Poor |
| Durability | 5+ years | 1-3 years (outdoor) | 1-2 years |
| Odor / VOCs | None (platinum cured) | May have solvents | Strong plastic odor |
Applications
🏛️
Architectural
Coves, facades
🛍️
Retail
Displays, shelves
🏨
Hospitality
Hotels, restaurants
🏠
Interior
Cabinet, furniture
🌳
Outdoor
Garden, pathways
🪧
Signage
Channel letters
🚗
Automotive
Interior accent
⚙️
OEM
Custom projects
Architectural lightingRetail displaySignage & channel lettersOutdoor facadeLandscape lightingHospitality interiorsAutomotive accentFurniture lighting
Made to your specification
Flat strip, flat D-shape, flat with base
Emission angle: 120° / 180° / 270°
Width 4-30mm · height 5-25mm
Length: rolls or cut-to-size
Color: opal, translucent, custom
Two-color extrusion (black + white)
IP67 / IP68 waterproofing optional
UL94 V-0 flame retardant
Adhesive backing for mounting
Low tooling fee for custom profiles
Case studies – real projects
European architectural lighting brand – 270° wide-angle flat diffuser for building facade project · 2,000+ panels installed · uniformity confirmed
UK retail display manufacturer – custom flat strip profile for shelf lighting · 5,000m+ delivered · 100% repeat order
US signage company – two-color extrusion for channel letters · 3+ years partnership · annual volume 200,000m+
Middle Eastern landscape lighting contractor – IP67 waterproof diffuser for outdoor pathways · 5+ years outdoor performance · zero yellowing complaints
Certifications & quality
ISO 9001
Quality management
CertifiedRoHS / REACH
Compliant
CertifiedUL94 V-0
Flame retardant
Option⭐ National High‑tech Enterprise | 🏭 Class 8 cleanroom
🎁 Cooperation benefits
📦
Free samples
Standard sizes free
Sample with COA test report
Sample with COA test report
🎨
Custom development
Sample in 7‑10 days
Low MOQ for trials
Low MOQ for trials
⚡
Fast delivery
Stock 5‑7 days
Custom 10‑15 days
Custom 10‑15 days
Frequently asked questions
What does 'flat-emitting surface side-lit' mean?
The diffuser is configured with LEDs along the side edge, with light emitted through a flat, planar surface – distinguishing it from curved-emitting designs.
What is the difference between flat and curved-emitting?
Flat-emitting = planar face, crisp linear light. Curved-emitting = rounded face, softer diffused glow.
What emission angles are available?
120° (flat strip), 180° (flat with base), 270° (flat D-shape), and custom profiles.
Can this bend around curves?
Yes – our flexible silicone diffuser bends around curves, corners, and contours while maintaining a flat emission face.
Does the diffuser yellow over time?
No. Anti-yellowing formulation maintains clarity after 10,000+ hours UV exposure, lasting 1-3+ years in typical environments.
What is the operating temperature range?
-40°C to +200°C – suitable for cold outdoor and high-temperature LED applications.
Is it waterproof for outdoor use?
Yes. Optional IP65 / IP67 / IP68 waterproofing for outdoor, facade, and landscape lighting.
Can I get custom profiles?
Yes – custom widths, heights, hardness, light transmission, and colors. Send your drawing for a free evaluation.
What is the lead time for custom orders?
Samples: 7-10 days. Mass production: 10-15 days after approval.
Can I get a free sample?
Yes – standard sizes free for qualified buyers. Sample includes COA test report.
Need custom silicone diffusers for your lighting project?
Factory-direct · Wholesale only · Free samples · OEM/ODM welcome
🎁 First 10 inquiries → free sample + priority tooling📦 Free sample with COA test report
Request a quote →Dongguan Yutian Silicone Rubber Technology Co., Ltd. | Flat-emitting surface side-lit silicone diffuser manufacturer | Optical-grade · Platinum cured | Flexible · IP67 · Anti-yellowing | Custom profiles 4-30mm | ISO 9001
Tel/Whatsapp: +86 18028921514 | Email: salesmanager@yutiansilicone.com
Tel/Whatsapp: +86 18028921514 | Email: salesmanager@yutiansilicone.com
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INQUIRY
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INQUIRY
Add Successfully
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