Interlayers.
Every panel we make is bonded with one of two interlayers: REVA BF EVA or SentryGlas. Switchable film, custom printed film and decorative films are interlayers too, laminated with EVA.
Two lites of glass with the interlayer between them, bonded in the kiln into one panel.
Ethylene-vinyl acetate, a clear copolymer film. Laid between two lites and heated under vacuum, it melts and bonds the glass into one laminated panel.
EVA flows around whatever is in the layup, so printed film, colored film, mirror backing and switchable film seal inside cleanly.
Good moisture resistance at the edge, which is why EVA panels work in kitchens and baths.
An EVA laminate is a laminated safety glass: it holds together when broken and filters most UV.
REVA BF EVA.
Our EVA is REVA BF from RCN Solutions, an SGCC list approved interlayer. It is the only EVA we use.
EVA flows at lamination temperature and seals around printed film, colored film, switchable film and mirror backing. We laminate in a vacuum kiln rather than an autoclave, so whatever is in the layup cures without being crushed. EVA panels hold together when broken, filter most UV, and quiet a room the same way any laminate does.
SentryGlas by Kuraray.
SentryGlas is an ionoplast interlayer made by Kuraray, developed for hurricane glazing and structural glass. Kuraray rates it five times stronger and up to 100 times stiffer than standard PVB, so a laminated panel deflects less, carries more, and stays rigid after a lite breaks. Because it resists moisture at the edge, panels can be left open-edged and outdoors without clouding.
House of LamiGlass is a SentryGlas-approved laminator. It is what we use for nearly all architectural glass: railings, guards, stair treads and canopies.
EVA and SentryGlas compared.
Both bond the glass into a laminated safety panel. SentryGlas adds stiffness and strength after breakage. Tell us what the glass has to do and we will recommend one.
| SentryGlas (ionoplast) | EVA | |
|---|---|---|
| Stiffness | Far stiffer than a standard interlayer. Less deflection at the same thickness, or the same stiffness from thinner glass | Standard. Not chosen for structural load |
| After breakage | A broken panel stays rigid and in place much longer, which is why it is specified for guards and walkable glass | Holds fragments together like any laminated safety glass |
| Open edges, outdoors | Resists moisture at the edge. Made for open-edge railings and exterior work | Ask us about exterior and open-edge use |
| Clarity | Very clear, low haze, no yellowing, including on thick low-iron builds | Clear, no yellowing |
Smart film.
Switchable film is a liquid-crystal layer laminated between two lites. With power on the glass is clear; with power off it frosts for privacy. We laminate it with EVA.
Custom printed.
Your artwork, photograph or pattern printed on film and laminated inside the glass. The print is sealed between two lites, so it cannot be scratched, wiped off or faded by cleaning. It laminates with EVA, and it can be backlit.
Decorative films.
Beyond custom prints, we carry a wide range of decorative interlayers: solid and translucent colors, patterns, textures, frosted looks and dichroic film. We also laminate wood, fabric and organic material. All of these laminate with EVA. Tell us the look you want and we will send options.
What laminated glass does, with either interlayer.
Two lites bonded with an interlayer. If the glass breaks, the pieces stay on the interlayer instead of falling. The rest is what the interlayer makes possible.
The interlayer holds fragments together, which is why laminated glass is used where people and glass meet: guards, partitions, overhead glazing.
Laminated glass filters most ultraviolet light, which slows fading of artwork, fabrics and flooring behind it. Figures from the interlayer data sheet.
The interlayer damps vibration, so a laminated lite transmits less sound than a single lite of the same thickness.
Sealed edges and a bonded interlayer suit kitchens and baths, where printed and backlit panels replace tile.
Both interlayers bond to printed film, colored film and switchable film, which is how decorative and smart glass are made.
With SentryGlas, laminated glass becomes stiff enough for guards, treads and open-edge balustrades.
Not sure which to specify?
Tell us where the glass goes and what it has to do. We will tell you the interlayer and the make-up.