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Radiation Protection Core Materials Used in IndoSurgicals Lead Aprons
IndoSurgicals Lead Apron Core Material Guide
Radiation Protection Core Materials Used in IndoSurgicals Lead Aprons
Compare StPb® Lead Vinyl, NoPb®-LT, NoPb®-SL and NoPb®-BL Radiation Protection Core Materials for 0.35 mmPb and 0.50 mmPb Lead Aprons
The protective performance of a lead apron depends mainly on the radiation protection core material used inside it. This core material is the shielding layer that helps reduce exposure to scattered X-rays during radiology, diagnostic imaging, dental imaging, C-arm procedures, cath lab work and other medical applications.
At IndoSurgicals Private Limited, we use carefully selected lead and lead-free radiation protection core materials for manufacturing lead aprons, lead-free aprons, frontal protection aprons, full protection aprons, thyroid shields, gonad shields, dental aprons, patient protection shields and other X-ray protection garments.
Our radiation protection materials are selected by considering important factors such as lead equivalence, shielding efficiency, core weight, flexibility, comfort, durability and suitability for different working environments.
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Shielding CoreThe internal layer that helps reduce scattered X-ray exposure.
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Core WeightMeasured in kg/m² and directly affects finished apron weight.
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Lead EquivalenceCommon IndoSurgicals options: 0.35 mmPb and 0.50 mmPb.
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Material ChoiceLead vinyl, lightweight lead-free, super lightweight and broad beam tested options.
IndoSurgicals Apron Protection Levels
IndoSurgicals offers radiation protection aprons mainly in two commonly used protection levels:
Apron Protection Level
Core Construction Used
0.35 mmPb Lead Equivalent
2 sheets of 0.175 mmPb
0.50 mmPb Lead Equivalent
2 sheets of 0.25 mmPb
Important weight note: The core material weights mentioned on this page are approximate weight per square metre. The final finished apron weight may vary depending on apron size, design, outer fabric, stitching, binding, hook-and-loop closure, buckles, pockets and accessories.
Types of Radiation Protection Core Materials Used by IndoSurgicals
IndoSurgicals uses different core materials to meet different user requirements. Some users prefer conventional lead vinyl protection, while others require lightweight or lead-free apron construction for long working hours.
Our main radiation protection core material options include:
Pb
StPb®
Lead vinyl radiation protection material for conventional, dependable and economical lead aprons.
Lead Vinyl
LT
NoPb®-LT
Lead-free lightweight material for balanced lead-free apron construction.
Lead-Free Lightweight
SL
NoPb®-SL
Lead-free super lightweight material for long wearing comfort and reduced apron weight.
Super Lightweight
BL
NoPb®-BL
Lead-free broad beam tested material for premium aprons with broad beam test data.
Broad Beam Tested
Core Material
Material Type
Best Suitable For
StPb®
Lead vinyl radiation protection material
Conventional, dependable and economical lead aprons
NoPb®-LT
Lead-free lightweight material
Balanced lead-free apron construction
NoPb®-SL
Lead-free super lightweight material
Long wearing comfort and reduced apron weight
NoPb®-BL
Lead-free broad beam tested material
Premium lead-free aprons with broad beam test data
Apron Construction Method Used by IndoSurgicals
Different apron designs require different placement of the protective core. IndoSurgicals manufactures radiation protection aprons in frontal protection, full-overlap full protection and partial-overlap full protection designs.
1. Frontal Protection Lead Apron
In a frontal protection lead apron, the radiation protection core is used on the front side of the apron. This design is suitable for users who mainly face the radiation source during procedures.
2. Full-Overlap Full Protection
The required front protection is achieved when both front panels overlap each other. The back panel is made with 0.25 mmPb lead equivalent protection.
3. Partial-Overlap Full Protection
Each front panel is made with the full claimed lead equivalent protection. The overlapped front portion provides additional shielding because two protective panels come together.
Frontal Protection Lead Apron
Claimed Protection
Front Protection Construction
0.35 mmPb
2 sheets of 0.175 mmPb
0.50 mmPb
2 sheets of 0.25 mmPb
Frontal protection aprons are commonly used in diagnostic imaging, dental radiology, X-ray rooms and routine healthcare environments where front-side scatter radiation protection is required.
Full-Overlap Full Protection Lead Apron
Claimed Apron Protection
Front Panel 1
Front Panel 2
Back Panel
Front Overlapped Area
0.35 mmPb
0.175 mmPb
0.175 mmPb
0.25 mmPb
0.35 mmPb
0.50 mmPb
0.25 mmPb
0.25 mmPb
0.25 mmPb
0.50 mmPb
This design is suitable for users who need both front and back protection while maintaining practical apron weight.
Partial-Overlap Full Protection Lead Apron
Claimed Apron Protection
Each Front Panel
Back Panel
Overlapped Front Area
0.35 mmPb Lead Equivalent
0.35 mmPb
0.25 mmPb
Approx. 0.70 mmPb
0.50 mmPb Lead Equivalent
0.50 mmPb
0.25 mmPb
Approx. 1.00 mmPb
In 0.35 mmPb partial-overlap aprons, each front panel provides 0.35 mmPb lead equivalent protection. Therefore, wherever both panels overlap, the combined front protection becomes approximately 0.70 mmPb.
In 0.50 mmPb partial-overlap aprons, each front panel provides 0.50 mmPb lead equivalent protection. Therefore, wherever both panels overlap, the combined front protection becomes approximately 1.00 mmPb.
1. StPb® Lead Vinyl Radiation Protection Core Material
Conventional lead vinyl radiation protection material for dependable and economical lead aprons.
StPb® is IndoSurgicals’ conventional lead vinyl radiation protection core material. It is used for manufacturing lead aprons, frontal protection aprons, full protection aprons, thyroid shields, gonad shields, dental aprons, patient protection shields and other X-ray protection garments.
StPb® is suitable for users who prefer traditional lead-based radiation protection with dependable shielding performance and cost-effective apron construction.
Core Identity
Type: Lead vinyl radiation protection core material
Use: Cost-effective conventional lead apron construction
StPb® Material Composition
Component
Description
Standard lead shielding particles
Main radiation attenuation component
Polymer / vinyl matrix
Flexible binder that holds lead particles together
StPb® 0.35 mmPb Apron Construction — 2 × 0.175 mmPb
Tube Voltage
Shielding Efficiency
50 kVp
99.70%
70 kVp
97.60%
90 kVp
94.50%
110 kVp
92.30%
120 kVp
91.30%
150 kVp
88.60%
StPb® 0.50 mmPb Apron Construction — 2 × 0.25 mmPb
Tube Voltage
Shielding Efficiency
50 kVp
99.90%
70 kVp
99.10%
90 kVp
97.40%
110 kVp
96.10%
120 kVp
95.50%
150 kVp
93.00%
How StPb® Is Used in IndoSurgicals Lead Aprons
StPb® can be used in frontal protection, full-overlap and partial-overlap full protection apron designs. It is a suitable option for hospitals, clinics, diagnostic centres and radiology departments looking for conventional lead vinyl apron protection.
2. NoPb®-LT Lead-Free Lightweight Radiation Protection Core Material
Lead-free lightweight core material designed for practical weight, flexibility and reliable shielding.
NoPb®-LT is a lead-free lightweight radiation protection core material used in selected IndoSurgicals lead-free aprons and X-ray protection garments. It is designed for users who require reliable radiation protection with a lighter construction compared to conventional lead vinyl material.
NoPb®-LT is a polymer-based radiation protection sheet made with lead-free attenuation compounds bonded inside a flexible POE polymer matrix. It is available in 0.175 mmPb and 0.25 mmPb sheet grades, which are used to manufacture 0.35 mmPb and 0.50 mmPb lead equivalent aprons.
NoPb®-LT Material Composition
Component
Percentage
Ultra-fine samarium oxide powder
41%
Ultra-fine cerium oxide powder
31%
Ultra-fine lanthanum oxide powder
2%
Ultra-fine gadolinium oxide powder
2%
Barium sulfate
2%
Ultra-fine bismuth oxide powder
4%
POE polymer matrix
18%
NoPb®-LT Core Sheet Weight / Area Density
NoPb®-LT Sheet / Construction
Approx. Core Weight
0.175 mmPb single sheet
2.25 kg/m²
0.25 mmPb single sheet
3.0 kg/m²
0.35 mmPb apron construction: 2 × 0.175 mmPb
4.5 kg/m²
0.50 mmPb apron construction: 2 × 0.25 mmPb
6.0 kg/m²
NoPb®-LT is lighter than StPb® in both 0.35 mmPb and 0.50 mmPb apron construction, making it a practical choice for users who prefer lead-free radiation protection with balanced weight and performance.
NoPb®-LT Shielding Efficiency Under ASTM Narrow Beam Conditions
NoPb®-LT 0.35 mmPb Apron Construction — 2 × 0.175 mmPb
Tube Voltage
Lead Equivalent
Shielding Efficiency
60 kV
0.245 mmPb
98.48%
70 kV
0.325 mmPb
98.27%
90 kV
0.440 mmPb
97.02%
110 kV
0.400 mmPb
94.68%
NoPb®-LT 0.50 mmPb Apron Construction — 2 × 0.25 mmPb
Tube Voltage
Lead Equivalent
Shielding Efficiency
60 kV
0.360 mmPb
99.57%
70 kV
0.492 mmPb
99.60%
90 kV
0.657 mmPb
98.88%
110 kV
0.555 mmPb
97.30%
How NoPb®-LT Is Used in IndoSurgicals Lead-Free Aprons
NoPb®-LT is used in selected frontal protection, full-overlap and partial-overlap full protection lead-free aprons. It is suitable for users who want a lead-free apron with reliable shielding, practical weight and good flexibility.
3. NoPb®-SL Lead-Free Super Lightweight Radiation Protection Core Material
Super lightweight lead-free core material for better wearing comfort during long working hours.
NoPb®-SL is a lead-free super lightweight radiation protection core material used by IndoSurgicals in selected lead-free aprons and X-ray protection garments.
This material is designed for users who need reduced apron weight and improved wearing comfort during long working hours. It is especially suitable for radiology professionals, technicians, doctors and healthcare staff who wear radiation protection garments for extended periods.
NoPb®-SL Material Composition
Component
Percentage
Ultra-fine antimony oxide powder
35.0%
Ultra-fine samarium oxide powder
30.0%
Ultra-fine cerium oxide powder
11.0%
Ultra-fine bismuth oxide powder
4.0%
Barium sulfate
2.0%
POE polymer matrix
18.0%
NoPb®-SL Core Sheet Weight / Area Density
NoPb®-SL Sheet / Construction
Approx. Core Weight
0.175 mmPb sheet
1.95 kg/m²
0.25 mmPb sheet
2.6 kg/m²
0.35 mmPb apron construction: 2 × 0.175 mmPb
3.9 kg/m²
0.50 mmPb apron construction: 2 × 0.25 mmPb
5.2 kg/m²
NoPb®-SL is the lightest lead-free core material option among the listed IndoSurgicals core materials. It is recommended where user comfort, reduced fatigue and long-duration wear are important.
NoPb®-SL Shielding Efficiency Under ASTM Narrow Beam Conditions
NoPb®-SL 0.35 mmPb Apron Construction — 2 × 0.175 mmPb
Tube Voltage
Lead Equivalent
Shielding Efficiency
60 kV
0.309 mmPb
99.29%
70 kV
0.369 mmPb
98.86%
90 kV
0.421 mmPb
96.73%
110 kV
0.362 mmPb
93.66%
NoPb®-SL 0.50 mmPb Apron Construction — 2 × 0.25 mmPb
Tube Voltage
Lead Equivalent
Shielding Efficiency
60 kV
0.472 mmPb
99.81%
70 kV
0.494 mmPb
99.60%
90 kV
0.601 mmPb
98.58%
110 kV
0.550 mmPb
97.24%
How NoPb®-SL Is Used in IndoSurgicals Lead-Free Aprons
NoPb®-SL is used in selected lead-free aprons where weight reduction is a major requirement. It is suitable for frontal protection aprons, full-overlap full protection aprons and partial-overlap full protection aprons.
For partial-overlap full protection designs, each front panel is made with the full claimed lead equivalent protection. Therefore, the overlapped front area provides additional combined shielding.
4. NoPb®-BL Lead-Free Broad Beam Tested Radiation Protection Core Material
Premium lead-free core material for users who prefer broad beam tested performance and technical documentation.
NoPb®-BL is a premium lead-free broad beam tested radiation protection core material used by IndoSurgicals in selected lead-free aprons and X-ray protection garments.
This material is designed for professional medical environments where broad beam tested performance and technical documentation are important. It is suitable for radiology departments, cath labs, C-arm procedures, interventional radiology, dental radiology and diagnostic imaging centres.
NoPb®-BL Material Composition
Component
Percentage
Ultra-fine antimony oxide powder
28.7%
Ultra-fine cerium oxide powder
24.6%
Ultra-fine bismuth oxide powder
16.4%
Ultra-fine gadolinium oxide powder
4.9%
Ultra-fine samarium oxide powder
4.1%
Ultra-fine lanthanum oxide powder
3.3%
POE polymer matrix
18.0%
NoPb®-BL Core Sheet Weight / Area Density
NoPb®-BL Sheet / Construction
Approx. Core Weight
0.175 mmPb sheet
Approx. 2.13 kg/m²
0.25 mmPb sheet
Approx. 3.0–3.02 kg/m²
0.35 mmPb apron construction: 2 × 0.175 mmPb
Approx. 4.29 kg/m²
0.50 mmPb apron construction: 2 × 0.25 mmPb
Approx. 6.0–6.04 kg/m²
NoPb®-BL Broad Beam Test Performance
NoPb®-BL 0.35 mmPb Apron Construction — 2 × 0.175 mmPb
Tube Voltage
Broad Beam Attenuation Ratio
Lead Equivalent Result
60 kV
183
0.4129 mmPb
70 kV
71.0
0.4116 mmPb
90 kV
23.4
0.4200 mmPb
110 kV
13.8
0.3957 mmPb
120 kV
11.4
0.3814 mmPb
150 kV
7.51
0.3572 mmPb
NoPb®-BL 0.50 mmPb Apron Construction — 2 × 0.25 mmPb
Tube Voltage
Broad Beam Attenuation Ratio
Shielding Attenuation
Lead Equivalent
60 kV
350.05
99.7%
0.47 mmPb
70 kV
189.24
99.4%
0.59 mmPb
80 kV
118.77
99.1%
0.66 mmPb
90 kV
69.74
98.5%
0.62 mmPb
110 kV
26.43
96.2%
0.58 mmPb
120 kV
20.60
95.1%
0.55 mmPb
130 kV
17.09
94.1%
0.53 mmPb
How NoPb®-BL Is Used in IndoSurgicals Lead-Free Aprons
NoPb®-BL is used in selected premium lead-free apron models where broad beam tested performance is preferred. It is suitable for hospitals, diagnostic centres and procedure areas where users need reliable lead-free shielding with documented performance.
Which Radiation Protection Core Material Should You Choose?
The right core material depends on the user’s working environment, required protection level, wearing duration, comfort preference and budget.
Requirement
Recommended Core Material
Conventional and economical lead apron
StPb®
Lead-free apron with balanced weight and performance
NoPb®-LT
Lightest lead-free apron option
NoPb®-SL
Premium broad beam tested lead-free apron
NoPb®-BL
Long wearing comfort
NoPb®-SL
General diagnostic and radiology use
StPb®, NoPb®-LT or NoPb®-SL
Cath lab / interventional use
NoPb®-SL or NoPb®-BL
For routine X-ray and diagnostic applications, StPb®, NoPb®-LT and NoPb®-SL are practical options depending on the required weight and budget. For applications where broad beam tested documentation is preferred, NoPb®-BL is a suitable premium lead-free option.
Applications of IndoSurgicals Radiation Protection Core Materials
IndoSurgicals radiation protection core materials are used in a wide range of X-ray protection garments and accessories, including:
Lead aprons
Lead-free aprons
Frontal protection aprons
Full protection aprons
Thyroid shields
Gonad shields
Dental aprons
Patient protection shields
X-ray protection garments
Radiation protection apparel for hospitals and diagnostic centres
These products are suitable for radiology departments, diagnostic imaging centres, dental clinics, C-arm procedure rooms, cath labs, hospitals and other healthcare environments where protection from scattered radiation is required.
Why Core Material Selection Is Important in a Lead Apron
A lead apron is not only judged by its outer appearance. The real performance depends on the core material used inside the apron. A good radiation protection core material should provide the required lead equivalence, suitable shielding efficiency, flexibility, comfort and durability.
A heavier apron may provide traditional confidence, but it can also increase user fatigue during long working hours. A lighter lead-free apron can improve comfort, but it must still provide the required protection level for the intended application. That is why IndoSurgicals offers multiple core material options, allowing users to choose the right balance between protection, weight, comfort and technical requirements.
Frequently Asked Questions
What is radiation protection core material in a lead apron?
Radiation protection core material is the internal shielding layer inside a lead apron or lead-free apron. It helps reduce exposure to scattered X-rays and determines the apron’s lead equivalence, shielding efficiency, flexibility and weight.
What is the difference between lead apron and lead-free apron?
A conventional lead apron uses lead-based shielding material such as StPb®. A lead-free apron uses non-lead attenuation compounds such as antimony oxide, bismuth oxide, samarium oxide, cerium oxide and other shielding materials bonded in a polymer matrix.
Which lead equivalent is commonly used in IndoSurgicals aprons?
IndoSurgicals mainly supplies radiation protection aprons in 0.35 mmPb and 0.50 mmPb lead equivalent protection levels.
Which IndoSurgicals core material is the lightest?
NoPb®-SL is the super lightweight lead-free core material option. It is suitable for users who need reduced apron weight and better comfort during long working hours.
Which core material is suitable for premium lead-free aprons?
NoPb®-BL is suitable for premium lead-free aprons where broad beam tested performance and technical documentation are important.
Does final apron weight equal core material weight?
Not exactly. Core material weight is calculated per square metre, while final apron weight depends on apron size, style, outer fabric, stitching, binding, closures, buckles, pockets and accessories.
Conclusion
IndoSurgicals Private Limited offers a complete range of radiation protection core materials for lead aprons and lead-free aprons. From conventional StPb® lead vinyl core material to lightweight and premium lead-free options such as NoPb®-LT, NoPb®-SL and NoPb®-BL, each material is selected to meet different protection, comfort and application requirements.
Whether you need a cost-effective lead apron for routine radiology use, a lightweight lead-free apron for long working hours or a broad beam tested premium apron for professional medical environments, IndoSurgicals provides suitable radiation protection solutions for hospitals, clinics, diagnostic centres, dental radiology and healthcare professionals.
Explore IndoSurgicals Lead Aprons
Compare radiation protection aprons by core material, lead equivalence, weight, comfort and intended clinical application.
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