ClearShield™ wherever x-ray shielding is required

MEDICAL • INDUSTRIAL • NUCLEAR • GOVERNMENT LABS • MILITARY

2sheets of ClearShield
ClearShield Sheets
2sheets of ClearShield

ClearShield is a transparent, lead-free, sheet of styrene-acrylate copolymer that contains about 30% by weight bismuth. The bismuth provides X-ray shielding properties comparable to lead (Pb). 

Instructions

the ClearShield Safety Data Sheet (SDS) for health and safety considerations prior to ClearShield fabrication.

It is highly recommended that the user determine cutting/drilling speeds, feed rates, and other machining parameters on a scrap piece of ClearShield before fabricating a finished piece.

To protect the surface of the material, leave the protective masking paper in place during fabrication.

Provide adequate ventilation to manage dust, which may be a lung irritant. If adequate ventilation cannot be provided, a mask or other physical barrier to prevent inhalation is recommended.

Storage: 

Store ClearShield horizontally. Place a sheet of cardboard on both sides of the ClearShield sheet and, if stacking, between each sheet. The storage base should be a sturdy, flat platform such as a sheet of plywood. Avoid extreme temperatures and high humidity.

Handling:

Carefully remove ClearShield from packaging to prevent damage. Both sides of the ClearShield sheets are protected by masking paper.

Do not remove the masking paper until the material is mounted and ready for the intended use. When moving with a forklift, take care to avoid scratching, chipping, and cracking. Always lift material, never slide.

Additional care should be taken to exercise caution when handling fractured or machined edges of ClearShield to avoid cuts or injury.

Radiation Inspection:

Radiation inspections should be performed with the ClearShield part in the “as used” condition to verify acceptable radiation attenuation for the application.

12mm

0.5mm PB Equivalent

Standard Sizing & Part ID

  • 12x12 #901-1-211
  • 24x24 #901-1-222
  • 24x30 #901-1-223
  • 24x36 #901-1-224

Custom sizing available: Please inquire

Physical Properties

Physical Properties:Test MethodUnitsClearShield
Thickness mm12.0 +/- 1.0
Specific gravity g/cc1.6
Tensile StrengthASTM D-638kg/cm2370
Tensile ModulusASTM D-638kg/cm23.1 x104
Flexural StrengthASTM D-790kg/cm2727
Flexural ModulusASTM D-790kg/cm22.5 x 104
Izod Impact (Method A)ASTM D-256kg/cm/cm2.22
Rockwell Hardness (M Scale)ASTM D-785 TBD
Deflection TemperatureASTM D-648ºC96.2
    
Optical Properties:   
Light TransmittanceASTM D-1003%73
HazeASTM D-1003%<2
    
Miscellaneous:   
Lead Equivalent Thickness (minimum)IEC 61331mm Pb0.5
FlammabilityUL 94 HB

FAQ

Cleaning:

Clean using a mild soap solution in water with a soft cloth. Avoid cleaners containing ammonia or alcohol.

Mounting:

Leave room within the mounting frame to allow for expansion and contraction of ClearShield. Oversize holes for fasteners, do not overtighten screws and bolts, and avoid local load concentrations.

Polishing:

ClearShield can be polished by hand or by machine. When machine buffing, constantly move the part side to side to prevent heat buildup. Use a plastic cleaner to prep the surface for polishing. Use plastic polish specified for acrylics for the final polishing.

Chamfer & Fillets:

A milling machine, hand router, or table router is recommended for cutting chamfers, fillets, and other edge profiles. Slow feeds and high speeds are recommended for a good surface finish.

Drilling:

Use a drill press. Twist drills with a 60-90° point is recommended to prevent chipping. High speeds, slow feeds yield the best surface finish. There is no cutting fluid required. Support bottom side of material with a scrap piece of wood or plastic to prevent chipping.

Saw Cutting:

A table saw or panel saw is recommended for cutting straight edges. The saw blade should protrude through the sheet ½ inch when cutting. Use a saw blade designed specifically for cutting acrylic.

Tapping:

Chamfer both sides of the hole before tapping to prevent chipping. No cutting fluid required. 

Sanding:

Light sanding starting with a course grit and working up to a fine grit will yield the best results. Continuously moving to different regions of the sandpaper will prevent heat buildup.

Storage & Handling

Downloads

ClearShield Instructions
ClearShield MSDS
ClearShield Instructions
ClearShield Instructions
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