0%
UV Transmittance
200–400 nm · Full UVA + UVB range
98.4%
Visible Light Transmittance
400–800 nm · Maximum display clarity
Lab-Tested UV Protection You Can Trust
Independent testing using UV spectrophotometry confirms that Slab Saver acrylic provides exceptional ultraviolet protection, helping preserve the integrity and value of your graded comics and cards.
Key Findings from Lab Report
0% UV transmittance from 200–400 nm
This range covers harmful UVB and UVA radiation. These wavelengths are the primary cause of:
Color fading Paper degradation Yellowing and brittleness
~98.4% visible light transmittance (400–800 nm)
Allows nearly all visible light through. Ensures maximum clarity and display quality.
What this means: Your collectibles are protected from damaging UV rays without sacrificing visibility or presentation.
Why UV Protection Matters for Collectors
Ultraviolet light is one of the leading causes of long-term damage to comics and trading cards. Even indoors.
Without Protection
✕Ink pigments fade and lose vibrancy
✕Paper fibers break down over time
✕Slabs can appear aged or yellowed
✕Market value can drop 20–60%+
With Slab Saver
✓Blocks the most damaging UV wavelengths entirely
✓Preserves original color, contrast, and condition
✓Extends the lifespan of your collection
Museum-Quality Acrylic Clarity
Protection means nothing if it compromises how your collection looks. That's why Slab Saver uses high-grade, museum-quality acrylic engineered for optical clarity and display performance.
Optical Performance
98.4% light transmission
Crystal-clear viewing with no haze or distortion
Maintains true color accuracy of labels and artwork
No "cloudy plastic" effect seen in lower-quality cases
What You'll Notice
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Labels remain sharp and readable
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Artwork appears vivid and true-to-life
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No "cloudy plastic" effect seen in lower-quality cases
The Perfect Balance: Protection + Presentation
Most display cases force a tradeoff. Slab Saver eliminates that compromise.
✕ High protection but poor clarity
✕ Clear display but no UV protection
✓ Blocks harmful UV completely (200–400 nm)
✓ Maintains near-perfect clarity (98.4% transmission)
✓ Designed specifically for graded comics & PSA card slabs
Built for Long-Term Preservation
Your collection isn't just for today — it's an investment. Slab Saver cases are designed to maintain structural integrity over time, resist environmental wear, and protect against light-based degradation.
This makes them ideal for
Long-term collectors
Protect value across years and decades
Display-focused collectors
Showcase without compromising condition
High-value slab protection
Built for slabs where grade matters most
Backed by Real Testing — Not Marketing Claims
Unlike generic display cases, Slab Saver performance is supported by independent lab testing, measured UV transmittance data, and quantifiable optical clarity metrics. No vague claims. Just real numbers.
Independent Lab Testing
Third-party verified
Measured UV Transmittance
Spectrophotometry data
Optical Clarity Metrics
Quantifiable performance
Certified & Independently Verified
Every claim on this page is backed by official documentation — from the factory's quality system to the safety and UV performance of the material itself.
9K
ISO 9001:2015 Certified
Our manufacturing partner operates under a certified Quality Management System, ensuring consistent production standards on every batch.
Certificate No. 1380Q1250053R0S
Standard GB/T 19001-2016 / ISO 9001:2015
Scope Production of acrylic products
Valid Apr 2025 – Apr 2028
Issuer Zhejiang Zhongbiao Excellence Certification Co., Ltd.
View Certificate →
CE
CE / RoHS Verified
Independently tested and verified compliant with EU RoHS 2.0 restricted-substance requirements — safe materials, safe for your collection.
Verification No. MK25080114P01-C01
Standards IEC 62321 series, RoHS 2.0 (EU) 2015/863
Product Acrylic display box
Issued August 27, 2025
Tested by TMC Testing Services (Shenzhen) Co., Ltd.
View Certificate →
UV
UV Transmittance Test Report
The independent spectrophotometer report behind the 0% UV / 98.4% visible-light numbers featured above.
Report No. HX20230903313G
Method UV spectrophotometer
Sample Acrylic box
Tested Sep 3–11, 2023
Issued by Qingdao Hengxin Testing Technique Service Co., Ltd.
View Report (p.1) →View Report (p.2) →
Protect What You Collect
Your comics and cards deserve more than basic protection. They deserve:
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True UV defense — complete blockage across the full 200–400 nm spectrum
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Museum-level clarity — 98.4% light transmission with zero compromise
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A display worthy of their value — designed for graded comics and PSA card slabs
Upgrade Your Display. Protect Your Collection.
Lab-tested. Real numbers. Built for collectors who take condition seriously.
Shop Slab Saver Displays
