01
Optimal Optical Properties, Minimum Fuss
There Is A Growing Global Trend To Integrate
Transparent Plastic Sheets In Place Of Glass In
Building Applications Such As Malls, Swimming
Pools, Train Stations And DYI. The Most Commonly
Used Option Is Polycarbonate (PC) Sheets,
Which Are Produced In Solid, Multiwall Or
Corrugated Form.
Each Form Of The PC Sheets Has Its Own
Production Challenges. Because Polycarbonate
Is A Transparent Polymer, Its Optical Properties Are
Of Utmost Importance, Along With Optical
Manipulations Where Transparent Colors, Light
Diffuser And Near-IR Heat Shielders Are Used. At
Al Sadek, We Offer A Comprehensive Range Of
Solutions For PC Sheet Producers.
02
UV Protection
PC Is Very Sensitive To UV Radiation, Exposure To The Solar Radiation, Without Proper Protection Tend Rapidly To Develop High Level Of Yellowness And Later On Crakes & Fractures. UV Protection Is Achieved Through The Co-Extrusion Of UV Compounds, But The High Level Of UV Absorber Additive In The UV Cap Layer Tends To Migrate During The Production Process, Affecting Extrusion Efficiency. As Sheet Producers Work Towards Improving The Extrusion And Co-Extrusion Process, We Have Taken On The Challenge Of Developing A Range Of Optimized UV Protection Additives For Use In The Production Of Solid And Multiwall Sheets.
03
Light Diffusion Protection
One Of The Problems Of A Clear Cover Is That It Lets In Direct Visible Light, Causing An Uncomfortable Glare. By Introducing A Light Diffusion (LD) System Into The PC Sheet Bulk, The Glare Is Eliminated. We Offer Several Such Solutions In Both MB And Compound Form.
04
Near IR (NIR) Absorber
Clear PC Lets In NIR Energy Which, Especially In Hot Climates, Can Cause A ‘Greenhouse’ Effect In Buildings Where These Sheets Are Used. We Have Developed A Range Of Masterbatches Based On Special Pigments That Selectively Block The NIR Energy, Significantly Reducing The Amount Of Energy Transmitted Into The Building With Minimal Effect On Visible Light.
LD
Light Diffuser
Eliminate Glare With A Unique Light Diffuser Masterbatch Or Compound From Tosaf’s Extensive Database. We Offer Products For Use With Either Polycarbonate Or Acrylic, To Give The Precise Balance Of Light Diffusion, Light Transmission, Thermal Stability And Processability Qualities That Suits Your Needs
Highlights
• High Diffusion Balance
• High Thermal Stability
• High Light Transmission
CM
Color Masterbatch
Finding An Exact Color Match Requires Wide-Ranging, Working Knowledge Of Pigments, Polymers And Additives. Working With An Extensive Global Network Of Renowned Research Partners, Tosaf’s Experts Have The Technical Competence To Create Complex Colors For Use In Virtually Any Polymer, In A Range Of Applications, Across Different Industries.
Highlights
• Backed By Vast Technical Knowhow
• Complex Colors For Use In Virtually All Polymers
• Orders As Small As 1 Kg For Any Of Our 500 Standard Colors
UV
UV Cap Layer
In PC Sheets, Protection From Solar Radiation Is Achieved By A Thin Co-Extrudate Cap Layer. We Offer Several Grades Of UV Cap Layer Suitable For Either Solid Or Multi-Wall Sheets, Containing Optical Brightener To Make The Layer Visible In The Lab And Gently Tinted With A Bluish Dye To Counter The Yellow Color Of The UV Absorber.
Highlights
• Minimize Plate-Out
• Counters The Yellow Color Of The UV Absorber
• Makes The Layer Visible In The Lab
FR
FR For PC Sheets
In PC Sheets, The Main Challenge In Adding Additives Is To Maintain The Original Transparency Properties Of The Polycarbonate. We Have Developed Several Flame-Retardant Solutions That Have Minimal Effect On The Sheets’ Transparency, Causing No Reduction In Light Transmission And An Increase Of Only 1-2% In The Original Value Of The Haze. For Opaque Sheets, We Offer A Very Effective Halogen-Free Solution
Highlights
• Minimal Effect On The Sheets’ Transparency
• An Increase Of Only 1-2% In The Original Value Of The Haze
• Halogen-Free Solution
NIR
Near IR Blocker
One Of The Main Drawbacks Of Using A Transparent Cover Or Roofing In Construction Is That It Lets In Near-Infrared (NIR) Energy, Creating A ‘Greenhouse’ Effect That Causes The Covered Area To Become Very Hot. Our NIR Masterbatch Absorbs Most Of The NIR Energy, With Minimum Effect On Transparency To Visible Light.
Highlights
• Reduces Heat
• High Absorbancy Of NIR Energy
• Minimum Effect On Transparency
MF
Matte And Frost Effect
Whether To Reduce Glare Or For Purely Aesthetic Reasons, Customers May Request A Matte Or Frost Effect On Their PC Sheets. We Offer Several Solutions For Achieving This Special Effect In PC Masterbatches, PMMA And PS Profiles.
Highlights
• Suitable For Use With PC Masterbatches, PMMA And PS Profiles
• Gentle Or Rough Effect
• Combines With The UV Cap Layer For Application Via Co-Extrusion
AB
Anti-Block For PC Corrugated Sheets
Due To Static Electrical Forces And The Absence Of Masking Film, It Can Be A Challenge To Separate Single PC Corrugated Sheets From The Pallet. Tosaf’s Simple, Cost-Effective Anti-Block Additive Resolves The Issue, Without Affecting The Production Process Or The Optical Properties Of The Sheets Themselves.
Highlights
• Cost Effective
• Does Not Affect Process
• Does Not Affect Optical Properties
GF
Glass Fiber MB
Unlike Other Polymers That Are Reinforced With Glass Fiber, Polycarbonate Sheets Have Excellent Mechanical Properties. Where Glass Fiber Is Used, It Is For Aesthetic Purposes, Giving The Sheet A ‘Broken’ Or ‘Hammer’ Effect. Our Glass Fiber Masterbatch Contains 20% Glass Fibers, Requiring Only 2%-3% Addition Rate To Achieve The Desired Effect.
Highlights
• Contains 20% Glass Fibers
• Requires Only 2%-3% Addition Rate
• Gives The Sheet A ‘Broken’ Or ‘Hammer’ Effect