What are the common materials for photo frame glass and how to choose the appropriate type?

2025-05-06 08:52:12

The material selection of photo frame glass directly affects the protection effect and display quality of the artwork. The following are the mainstream material types and their core performance comparisons:

1. Ordinary float glass

Using sodium calcium silicate formula, the thickness is usually 2-3mm, the light transmittance is ≥ 89%, the cost is the lowest (about 10-20 yuan/㎡), but the impact resistance is poor (Mohs hardness 5.5), and sharp fragments are formed after fragmentation, which is only suitable for temporary display or low-cost scenes.

2. tempered glass

After high-temperature quenching at 700 ℃, the surface compressive stress is ≥ 90MPa, and the bending strength is 4-5 times that of ordinary glass (≥ 120MPa). After fragmentation, it forms obtuse angle particles (with a single weight of ≤ 40g), which have high safety and are suitable for households or public spaces. However, due to its large self weight (8mm thickness, about 20kg/㎡), it needs to be reinforced with a frame.

3. Acrylic organic glass (PMMA)

Using polymethyl methacrylate as the substrate, the light transmittance is over 92%, and the weight is only 50% of the same specification glass (3mm thickness is about 3.6kg/㎡). The impact strength is ≥ 16kJ/m ², but the surface hardness is low (Mohs hardness 2-3), which makes it easy to be scratched. It is recommended to use it with a scratch resistant coating.

4. Anti reflective glass

By using magnetron sputtering coating technology (such as SiO ₂/TiO ₂ multilayer film), the surface reflectivity is reduced from 8% to below 2%, and the transmittance is increased to 97%. It is particularly suitable for scenes such as oil painting and photography that require high color reproduction, but the cost is relatively high (about 150-300 yuan/㎡).

5. UV resistant glass

By using interlayer UV absorbing film (such as PVB film) or doping cerium element in the body, 99% of ultraviolet rays (wavelength<380nm) can be blocked. Combined with low iron ultra white glass (iron content ≤ 0.01%), light scattering can be further reduced, and the storage period of sensitive materials such as paper and fabrics can be extended.

Material selection suggestion: ordinary display can choose float glass; Use tempered steel or acrylic for impact resistant scenarios; Recommended for art collection is "anti reflection+anti ultraviolet" composite glass, which balances aesthetics and protective performance.

Longbo Picture Frame Glass

Type: Float Glass, Sheet Glass,Anti Glare Glass,Anti reflective glass

Thickness: 1.5mm, 1.8mm, 2mm, 2.5mm,2.8mm, 3mm etc.

Size: 1830x2440mm,1830x1220mm,914x1220mm, 914x610mm etc.

More product details:https://longboglass.com/product/2.html