Classic Brands Vibe 12-Inch Gel Memory Foam Mattress | Bed in a Box, [Mattress Only], Twin XL

Polyurethane, the best solution for thermal insulation

• What types of polyurethane are there?
• What is the use of polyurethane?
• How does polyurethane act as a thermal insulator?

Polyurethanes are highly versatile polymers that can be used in the manufacture of foams and paints. They are the result of the reaction of a polyol with an isocyanate using catalysts and special additives.



Classic Brands Vibe 12-Inch Gel Memory Foam Mattress | Bed in a Box, [Mattress Only], Twin XL

Thus, we find them in different categories.
Polyurethane categories

Rigid:

• * Low densities: Density range 5 - 50 kg / m³.
• * Half densities: density range 55 - 90 kg / m³.
• * High densities: density range of 100 kg / m³ and up.

Semi- rigid: Rigid materials with a certain degree of flexibility, their densities are 600 kg / m³ and up.

Microcellular : Flexible foams with densities of 250 kg / m³ and up.

Molded flexible foams : High resilience foams molded at room temperature with densities of 30 to 80 Kg / m³.

Full-skin foams: Flexible and semi-flexible foams with excellent skin formation when copying the surface of the mold.

Adhesives : Bicomponent systems free of solvent with curing at room temperature.

Elastomers : Liquid two-component polyurethane rubber cured at room temperature.

Demoulding : These are materials that are used as false substrates, for the molding of different types of polyurethane.

Energy saving worldwide is an important issue, more and more countries including Mexico are concerned and interested in taking concrete actions that help to make this savings more efficient. Eco-technologies in green housing are one of those actions that are being implemented and within them is thermal insulation.
Applications of polyurethane as a thermal insulator

As a thermal insulator, polyurethane has different applications:

•     Floor insulation
•     Internal and external insulation of facades
•     Roof insulation
•     Coating of tanks and pipes

In thermal insulation, applied materials are used in ceilings or slabs and walls, one of the most widely used is the closed cell polyurethane foam (EAPcc).
Polyurethane suppliers for thermal insulation

Next we present to Eiffel Products, polyurethane supplier:

Productos Eiffel is a 100% Mexican company that is a pioneer in the development of polyurethane systems. Within its wide range of products we find the Closed Cell Polyurethane Spray Foam (EAPcc).

Closed-cell Polyurethane Spray Foam (EAPcc)

The closed cell Polyurethane Spray Foam (EAPcc) has an excellent Thermal Resistance (Factor R = 1.20 m² ° C / W) which is higher against insulating materials (Table of Factor R to 1 inch (0.02536 m) of thickness of Insulating materials).

The EAPcc provides comfort inside the house, keeping the cold outdoors during the winter and leaving the heat outside in the summer, also reduces the capacity of the air conditioning thus achieving energy savings.

Thermal Efficiency Table
Thickness vs. Insulating materials

• Material    K factor (*)
• Polyurethane    0.021
• Polystyrene Ext.    0.031
• Polystyrene Exp.    0.036
• Fiberglass    0.036
• Mineral wool    0.041
• Glass foam    0.054
• Expanded perlite    0.054

K Factor: Thermal Conductivity W / m ° C


The lower the value, the better insulator

Example of calculation of R for 1 "(0.02536 mts.) Of polyurethane:

Metric system 1 "x 0.02536 = 0.02536 m

Factor to convert in to m.

R = 0.02536 m / 0.021 = 1.20 m² ° C / W

Table of Factor R to 1 inch (0.02536 m) thickness of insulating materials

• Material    Factor K    Factor R
• Polyurethane    0.021    1.20 m² ° C / W
• Polystyrene Ext.    0.031    0.82 m² ° C / W
• Polystyrene Exp.    0.036    0.70 m² ° C / W
• Fiberglass    0.036    0.70 m² ° C / W
• Mineral wool    0.041    0.62 m² ° C / W
• Glass foam    0.054    0.47 m² ° C / W
• Expanded perlite    0.054    0.47 m² ° C / W