Interlayers

Components Interlayers.

Interlayers bond glass together under heat and pressure to form laminated glass.

Viracon offers a variety of interlayer materials that provide enhanced safety and security protection, as well as solar ultraviolet protection and acoustic sound reduction.

For details on the size capabilities for our interlayer offering, visit the Sizes page.

Material Types Types.

PVB

Polyvinyl Butyral (PVB) interlayers, the architectural glass standard

PVB is a common material for architectural glass interlayers and is available in a variety of thicknesses.

.030” is the minimal thickness required for safety glazing

.060” is a popular thickness for a variety of applications

.090” offers slightly better performance than .060” PVB

.060” Saflex™ Acoustic offers enhanced sound attenuation performance

Enhanced PVB

Toughened PVB-based interlayers for impact and security protection

Saflex™ Storm and Saflex™ HP enhanced PVB interlayers are offered by Viracon to provide greater impact resistance compared to standard PVB.

.077” Saflex™ Storm is a composite interlayer that provides the impact resistance of a PVB along with the tear resistance of a polyethylene terephthalate (PET) film.

.100” Saflex™ HP is ideal for hurricane and storm protection

Level E makeups include multi-layer interlayers constructed to meet ASTM E1996 Level-E for essential facilities

.154” Saflex™ Storm (Saflex VS) – two layers of .077” Saflex Storm
.177” Saflex HP-VS - .050” HP + .077” Saflex Storm + .050” HP

SentryGlas®

Rigid ionoplast interlayer for enhanced structural integrity and impact protection

SentryGlas (SG) is an ionoplast interlayer that minimizes deflection due to its rigidity.

.060” SentryGlas

.090” SentryGlas

.180” SentryGlas meets ASTM E1996 Level E for essential facilities using two layers of .090” SG

SentryGlas Xtra® is an ionoplast interlayer that is available with print (digital or silkscreen) next to the interlayer.

.060” SentryGlas Xtra

.100” SentryGlas Xtra

Color PVB

Color PVB interlayers expand laminated glass aesthetic possibilities

Launch Eastman's
Vanceva Color Selector

The Vanceva™ Color PVB System is built on a basic palette of 16 colors that can be combined in up to four layers to produce custom-colored laminated glass.

Each Vanceva color combination is assigned a four-digit number, derived from the colors selected and order of the basic color layers.

Use the Vanceva Color Selector Tool from Eastman to generate a color for your project.

Once you generate a 4-digit code within the Color Selector Tool, contact Viracon to discuss product availability and additional design considerations to be evaluated.

Best For Applications.

Hurricane & Storm

Protection from severe winds and windborne debris impact

Explore Hurricane glass

Interlayers used in laminated glass are formulated to protect buildings and surroundings from severe winds and windborne debris impact in the event of a hurricane or storm.

Viracon offers interlayers certified to Miami-Dade County compliance by component NOAs (Notice of Acceptance) and qualify to ASTM E1996 test standard when installed into a suitable glazing system.

Small Missile - hurricane impact protection for elevations above 30 feet

Large Missile Level D - hurricane impact protection for ground level up to 30 feet

Large Missile Level E - hurricane impact protection for essential facilities

Tornado, Other Storm - additional storm protection for windborne debris and impact resistance can be evaluated, contact Viracon to discuss solutions

Hurricane – Storm Interlayers
Missile	Level	Typical Building Elevation	PVB	SentryGlas® (SG)	SentryGlas Xtra® (SGX)	Saflex™ HP	Saflex™ Storm
Small	A	Above 30 feet	.060″ PVB
Small	B	Skylights ≥ 30 feet	.060″ PVB
Large	D	Ground level to 30 feet	.090″ PVB	.090″ SG	.100″ SGX	.100″ Saflex™ HP	.077″ Saflex™ Storm
Large	E	Essential Facilities < 30 feet		.180″ SG		.177″ Saflex™ HP-VS	.154″ Saflex™ Storm

Security

Protection from forced entry, bomb blast and electronic eavesdropping threats

explore security glass Viracon PLUS™ CyberShield®

Interlayers used in laminated glass can offer occupant protection from:

Forced Entry & Ballistics

Protection against physical attack and ballistic (bullet) attack

Smash & Grab, Vandalism, Burglary

Protection again vandalism and burglary attack

Bomb Blast

Protection against bomb blast (explosion) attack

Electronic Eavesdropping Protection

Reduces transmission of radio frequency (RF) electromagnetic radiation

Acoustic

Sound transmission control by disseminating sound waves

explore Acoustic glass

Laminated glass disseminates sound waves to improve sound transmission control (STC) for building occupants.

Upgrading a single monolithic lite of glass to a laminated glass configuration provides a significant improvement in STC. Using a Saflex Acoustic PVB interlayer further decreases sound transmission versus non-laminated glass, in the critical frequency range.

Viracon offers configurations that can further reduce sound transmission for interior spaces.

Refer to acoustic performance tables here.