Sr.No. | Detail | PVBย | SGP |
1 | Manufacturer | PVB is Polyvinyl butyral, many different suppliers can produce this material all around the world. | SGP is an abbreviation of Sentry Glass Plus Interlayer, crated by American brand Dupont, on June 1, 2014, Kuraray Co., Ltd. became the exclusive licensee for the technology and trademark of SentryGlasยฎ. |
2 | Strength | PVB is by far the most commonly used and specified interlayer for a wide variety of applications in construction. | The newer SGP interlayer is marketed as a product that offers 5-times the tear strength and 100-times the rigidity of standard PVB. |
3 | Thickness | The PVB thickness is 0.38mm, 0.76mm, 1.14mm, multiple of 0.38mm, | The SGP thickness is 0.89mm, 1.52mm, 2.28mm, etc. |
4 | Stiffness | The special PVB interlayer in laminated glass can absorb the impact and resists penetration.Under extremely harsh impact, the glass might break but the glass fragments will remain firmly attached to the interlayer and not shatter like ordinary glass.This minimises the risk of injuries and ensures safety. | A laminate with SGP will not pass safety standards for windshields because the SGP is stiffer and the laminated glass would be too stiff for head impact.There is a reason that SGP is not used in laminates in automobile glazing. |
5 | Yellow Index | The PVB yellow index is 6-12 | The SGP yellow index is smaller than 1.5.so the SGP laminated glass is much more clear than PVB laminated glass. |
6 | Application | Application for PVB laminated glass: railing, fence, stair, floor, shower room, tabletop, windows, glass sliding door, glass partition, glass skylight, glass curtain wall, windows, glass doors, glass facade, windshields, Bullet-proof glass, etc | Application for SGP: Bullet-proof glass, Explosion-proof glass, High-speed train windshield, Railings -SGP hurricane glass, Ceiling, skylight, staircase, steps, floor, fence, canopy, partition, etc. |
7 | Cost-Effective | PVB is more cost-effective than SGP laminated glass | SGP is more expensive than PVB laminated glass. |
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