We sell conventional foams (flexible polyurethane), latex foams,and closed-cell foams. Our conventional foams – used primarily for sitting and sleeping – are manufactured in the Pacific Northwest and Canada.
Certified organic latex options. Our conventional foam options are free of fillers (often found in lesser-quality foams) and of fire retardants.
Frequently asked questions
What is density?
|Low density||1.0–1.5 pounds||Good|
|Medium density||1.6–2.2 pounds||Better|
|High density||2.3–2.8 pounds||Best|
What is firmness?
Foam firmness is measured using the force in pounds required to indent a foam sample by 25% of its original height – this is the indentation force deflection, or IFD. Firmness is separate from density. High-density foams can be soft, and low-density foams can be firm.
Does conventional foam off-gas?
Flexible polyurethane foam is an inert substance once it has been cured. Foam in its cured state does not produce toxic off-gassing.
How is foam made?
Flexible polyurethane foam is made by mixing two key raw materials, a polyol and a diisocyanate, with a primary blowing agent—water or CO2—which produces an exothermic (heat-generating) reaction. The mixture is poured onto a moving conveyor in a chamber with sides that are 3 to 4 feet high. As the mixture reacts, bubbles form and the mixture expands—like bread rising. When the reaction completes, the resulting slab of foam is cut and stored for curing.
Making natural latex foam rubber begins with removing latex, or sap, from the trunk of a rubber tree (Hevea brasiliensis). The liquid latex is mixed with water, then whipped to a froth, or emulsified. Using the Dunlop method, the latex is poured into a mold and vulcanized. With the Talalay method, the latex is poured into a mold, flash frozen to evenly suspend fine air bubbles, then heated. During the heating process, molecular crosslinks form, which is what allows the foam to recover its shape after being compressed. Dunlop-made latex foam has a firmer feel; Talalay-made latex foam has a slightly softer feel.