KINGSTAR GLASS
CAT II Mirror | Safety-Backed Mirror Glass for Commercial and High-Traffic Applications from KINGSTAR BUILDING GLASS
KINGSTAR BUILDING GLASS CAT II Mirror is a safety-backed mirror glass engineered to meet the rigorous impact resistance requirements of ANSI Z97.1 Category II and CPSC 16 CFR 1201 Category II standards. These standards mandate that safety glazing materials withstand a 400 foot-pound impact test, ensuring that if the mirror breaks, glass fragments remain adhered to the backing, eliminating the risk of falling shards. Available with heavy-duty safety backing film applied to standard silver mirrors
A CAT II (Category II) mirror is a mirror glass product that has been tested and certified to meet the impact safety requirements of Category II under ANSI Z97.1 and CPSC 16 CFR 1201 standards. These standards establish specifications and test methods for safety glazing materials used in buildings to reduce the likelihood of cutting and piercing injuries when the glazing is broken by human contact.
Under these standards, safety glazing materials are classified into two categories based on impact resistance:
| Category | Impact Test | Drop Height | Typical Applications |
|---|---|---|---|
| CAT I | 150 foot-pounds | Lower impact | Small panels, low-risk areas |
| CAT II | 400 foot-pounds | Higher impact | Large expanses, high-traffic commercial spaces |
Category II is the more stringent classification, required for larger glass expanses in high-risk, high-traffic commercial spaces.
KINGSTAR BUILDING GLASS offers CAT II mirrors through two primary methods:
Method 1: Safety Backing Film
A heavy-duty, multi-layered safety backing film (typically 5-mil to 10-mil solid polyethylene or woven copolymer film) is applied to the posterior surface of the mirror. This film is designed to withstand 400 foot-pounds of impact. In the event of breakage, glass fragments remain adhered to the backing, preventing falling shards. The film features a high-performance acrylic adhesive that is chemically inert to mirror backing paints and resistant to moisture, high temperature, UV, chemicals, oils, abrasion, aging, mildew, and fungus.
Method 2: Tempered or Laminated Glass Mirror
Mirrors manufactured using fully tempered float glass or laminated glass construction inherently meet Category II safety specifications. Tempered glass is heat-treated to increase strength and engineered to meet stringent safety standards. Laminated glass mirrors consist of two lites of glass bonded with an interlayer.
KINGSTAR BUILDING GLASS CAT II Mirrors comply with the following standards:
| Parameter | Specification |
|---|---|
| Glass Type | Clear Float Glass or Tempered Float Glass |
| Mirror Type | Silver Mirror with Safety Backing, Tempered Mirror, or Laminated Mirror |
| Thickness Range | 4mm, 5mm, 6mm, 8mm |
| Maximum Size | Up to 3300mm by 6000mm (varies by thickness and configuration) |
| Safety Backing | Heavy-duty 5-10 mil multi-layered polyethylene or woven copolymer film |
| Impact Resistance | 400 foot-pounds (Category II) |
| Adhesive Type | Acrylic, self-crosslinking, moisture and UV resistant |
| Standards | ANSI Z97.1-2009, CPSC 16 CFR 1201 Cat II, BS 6206 Class A, CAN 2-12.1 |
| Edge Finishing | Flat Polish, Pencil Polish, Beveled Edge |
| Available Configurations | Monolithic with Safety Backing, Tempered, Laminated |
| Certifications | ISO 9001, CE |
| Lead Time | 10 to 25 days after order confirmation |
| Packaging | Protective film, edge protectors, interleaving paper, seaworthy wooden crates |
Commercial and Public Spaces:
Architectural and Interior Applications:
Ready to specify CAT II safety mirrors for your next commercial or high-traffic project? Share your requirements with our technical team for custom CAT II mirror solutions. We will provide safety certification documentation, impact test data, and a competitive quote tailored to your project requirements, backed by a decade of glass and mirror expertise.
Q1: What is the difference between CAT I and CAT II mirrors?
A: CAT I and CAT II are impact safety classifications under ANSI Z97.1 and CPSC 16 CFR 1201 standards. CAT I requires a 150 foot-pound impact test and is suitable for smaller panels or low-risk areas. CAT II requires a 400 foot-pound impact test and is mandatory for larger glass expanses in high-risk, high-traffic commercial spaces such as public restrooms, gymnasiums, and schools. CAT II provides a significantly higher level of impact protection and occupant safety.
Q2: How is CAT II safety achieved in a mirror?
A: CAT II safety can be achieved through two primary methods. The first is applying a heavy-duty multi-layered safety backing film (5-10 mil) to the posterior surface of the mirror. This film is designed to withstand 400 foot-pounds of impact and holds glass fragments in place upon breakage. The second is manufacturing the mirror using fully tempered float glass or laminated glass construction, which inherently meets Category II safety specifications.
Q3: Where are CAT II mirrors required by building codes?
A: CAT II mirrors are required in various high-risk and high-traffic applications as defined by building codes. These include glazing in multipurpose gymnasiums, basketball courts, and similar athletic facilities subject to human impact loads; glass in elevator car enclosures, doors, and wall linings; glass used as structural balustrade panels and infill panels in railings; and large glass expanses in high-traffic commercial spaces such as public restrooms and locker rooms. Always consult local building codes for specific requirements.
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Thickness: 2mm, 3mm, 4mm, 5mm, 6mm
Color: clear, bronze, grey
Size: 1830*1220mm, 1830*2440mm, 3300*2140mm
Application
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