Foam Facts & Information
(Most frequently used foam types and common use information) . . .
See notes below for more information on Density (weight) & ILD.
EZ-Dri Outdoor Foam (Medium or Firm)
Weight: 1.8 per cubic foot ILD 22-32-38, 47-53
Use: EZ-Dri foam is used for outdoor cushions and dries almost immediately after exposure to rain, salt spray, melting snow & other forms of moisture & humidity. Large open pores allow maximum water drainage & air circulation. If has a built in fungicidal additive that inhibits fungus & mildew - important for retarding stains & odors. See our Outdoor Foam Information page for additional information.
Polyurethane 1030
Weight: 1.0–1.2 lb. per cubic foot ILD 27-34
Use: Our lowest density foam used for mattress toppers, seat toppers, day care napping pads, pet beds, and other light use applications.
Polyurethane 1217
Weight: 1.2 lb. per cubic foot ILD 12-18
Use: Super-soft foam typically used for back cushions.
Polyurethane SF32 Weight: 1.5 lb. per cubic foot ILD 32-36
Use: Good quality available in firm. Most often used in new furniture cushions 5" or thicker. Good for extra firm mattresses.
Polyurethane 2034 Pink
Weight: 2.0 lb. per cubic foot ILD 34-40
Use: Better quality, medium-firm foam used primarily for furniture cushions, mattresses, bay windows, camping pads, all seating applications, etc.
High Density XL33, XL50
Weight: 2.5 lb. per cubic foot ILD 28-33, 48-53
Use: Best-quality foam available in medium and firm. Used for high-end furniture, mattresses, boating, yachting, church pews, dining chairs, and piano benches. It is also fire retardant (meets CAL 117). And has a long-life guarantee.
High Resilience (HR) Foam
Use: HR foam is a premium quality foam with a cell structure different from conventional products which results in a cushioning material which is more supportive, comfortable & durable. HR foam is considered to be of the highest quality for use in upholstered furniture & mattresses.
Matrix 25140
Weight: 2.5 lb. per cubic foot ILD 140-145
Use: Very firm, high shock-absorbency foam used when building up seats, tractor seats, wrestling mats, and athletic equipment.
G40C Charcoal (call for pricing)
Weight: 1.5 lb. per cubic foot
Use: Very firm foam good for packaging, RV skylight fillers, and other light blocking applications.
Memory Foam
See notes below for more information about memory foam...
Weight: 5 lb. per cubic foot ILD 10-13
Use: Soft foam used in 2" to 3" thickness as mattress topper. Conforms to your body & regulates body temperature.
Rebonded Foam
Weight: 8 lb. per cubic foot
Use: Manufacturing high end athletic equipment & mats. See our Specialty Foam page for more information.
FAQ's about Polyurethane Foam & Memory Foam
Foam Weight (Density) & ILD (Compression). . .
What is Density and why is it important?
Density is the weight of the foam and is found by weighing a 12” square cube of foam in pounds (English not Metric). Higher density foams will be more resilient and durable than lower density foams. Both products may feel similar if their ILD’s are similar, but there is no doubt that higher density products give better durability.
What is the ILD?
ILD stands for Indention Load Deflection, and by knowing the ILD you can tell how firm the foam is. The ILD is the force (in pounds) required to compress a
50–inch indenter foot into a 4-inch thick sample 25% of its overall height. The lower the ILD the softer the foam is, and the higher the ILD the firmer the foam is. Foams that have similar ILD’s will feel similar even if their density is different.
All Memory Foam is not Created Equal...
Can the difference between the various densities of Memory Foam be felt, and if it can, why are you selling higher density Memory Foam instead of lower density Memory Foam?
The main difference is both in price and in performance. Higher density memory foam equals a higher performance and a higher price. Lower density memory foam is still good, but prices will be lower. When the memory foam is denser it will have more support, and will conform to your body more. Higher density memory foams are designed for better performance and a longer comfort life.
Why does Memory Foam turn yellow as it ages?
All memory foam oxidizes, and will turn yellow as it ages. (Like when a penny becomes darker over time.) This is a completely natural process that the memory foam goes through, and in no way impairs from the effectiveness of the memory foam material.
The R.U.S.H. Guarantee . . .
We want you to be delighted with every item you order from us, and we pride ourselves in the quality of our products. However, foam products and pillows are nonreturnable items as stated in the National Health & Safety Code. You have the right to cancel any order within 24 hours of initial order placement. Cancelled orders will have a 25% restocking fee.
