Page 24 - WEB-I3 Insulating Glass Fabrication Supplies and Equipment

SECTION 3 FHC INSULATING GLASS FABRICATION, SUPPLIES AND EQUIPMENT
FHC IG Terms and Definitions
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Dew Point Filler Isotherm
The “dew point” is the temperature A substance added to increase volume, A graph showing how adsorption capacity
at which air becomes saturated with inhibit sagging, enhance stickiness, changes with varying concentrations of
moisture, causing water vapor to condense unity, stretchability, and other properties adsorbate (water) at a constant temperature.
into liquid water or dew. within a sealing mixture.
Kicker
Dual Glazing Gasket A catalyst initiates curing in a
“Dual glazing” is two glass panels with an A pliable material inserted between two-part material.
air gap, offering insulation against heat two surfaces to create a seal at their
loss and noise. junction. Lite

Durometer Gas Filled Units In glazing, “lite” refers to a piece of
glass or unit.
A machine used to measure the shore Gas-filled insulating glass units,
hardness of materials like neoprene. enhancing thermal and sound insulation. Low Emissivity
Glass (Low-E)
Elasticity Glazing
Elasticity is the material’s capacity to Mounting glass within frames, sashes, Low-E glass has a reflective coating
that improves its U-value.
regain its original form or state after and window walls.
deformation. It is also known as ‘Memory’ Mastic
or ‘Recovery.’
Hardness A thick adhesive applied with a knife,
Elastomer This metric gauges a material’s trowel, or heated applicator.
A rubbery material that quickly reverts resilience to deformation, commonly Modulus
expressed in “Shore A” units, and is
to nearly its original dimensions after evaluated with a durometer.
undergoing significant deformation. The relationship between stress and strain;
Heel Bead low-modulus materials stretch easily.
Elongation A strip of substance used to seal the
The ability of a material to stretch area between the glass and frame. Moisture Cure
or elongate. A material that cures or sets by using
Hermetically Sealed moisture from the air.
Exothermic
A chemical reaction that produces heat. Two separate pieces of glass sealed Moisture Vapor Transfer
with a gap of air in between, commonly Rare (MVTR)
known as Thermopane.
Extender Rate of moisture ingress into the sealed space
An economical material typically added Hypalon between unit lites from the atmosphere.
to reduce costs in a sealant compound. A synthetic rubber-like material
(an elastomer). Molecular Sieve
Extrudability (13-X Variety)
The level of ease or challenge involved IGMA (Insulating Glass A zeolite, part of the class of substances with
in forcing a material through a narrow Manufacturer’s Alliance) small, uniform pores in their crystal structures,
passage for application or shaping. capable of adsorbing molecules that can pass
A voluntary organization comprising through these pores. The pore openings are
Face Glaze manufacturers of insulating glass units about 10 angstroms wide, with one angstrom
A layer of glazing compound applied and suppliers of component materials being one ten-millionth of a millimeter.
used in these units.
once the glass or insulated glass unit
is in place. Molecular Sieve
Interface
Fatigue Failure The shared surface or boundary (3-A Variety)
Failure of a material due to rapid or between two substances, such as the Similar to 13-Xd but with smaller pore
prolonged cyclical deformation. point where the insulating glass unit openings, about four angstroms wide.
meets the channel.

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