FOAM-LOK™500 - water-based spray foam insulation with an open cell structure

FOAM-LOK™500 is a two-component premium spray foam insulation based on water with an open cell structure. Among its main advantages are unchanging thermal insulation properties, quick installation, and the ability to insulate otherwise very hard-to-reach places and details. FOAM-LOK™500 fills all gaps and prevents moisture and air from penetrating the building structure.



The insulation FOAM-LOK™500 is designed to breathe within the building construction and allows water vapor to pass through (excellent diffusion resistance). FOAM-LOK™500 is especially recommended for roof structures, house walls, between rafters, for wooden buildings, chalets, etc. It completely fills all gaps, creating an air barrier, thus preventing the intrusion of cold air and consequently the condensation of water inside the structure. It prevents the formation of mold and, with all its advantages, is maximally environmentally friendly.

All spray insulation foams with open cell structure absorb water. However, in terms of water absorption, it is crucial not how quickly and how much water the foam absorbs! What matters is how quickly the water can leave the insulation – how quickly the foam can dry out. Some foams exhibit so-called delayed absorption, which can affect the drying out of the foam itself, and this is a significant problem, as the property owner may have no idea about a potential crack in the roof and does not address the situation. Moreover, water-saturated foam/insulation that retains water does not insulate naturally, crumbles, loses adherence to the substrate, and other technical properties. The insulation FOAM-LOK™ 500 is designed to absorb water and allow it to pass further.

The premium line of spray foam insulation FOAM-LOK™ offers a wide range of applications according to the place of use - from foundations to roofs, in interiors and exteriors, offering both open and closed cell structures.

Thermal Properties of FOAM-LOK™500 Foam Insulation

Thickness of Foam-Lok500 layer	Thermal resistance R (m2.K/W)	Heat transfer coefficient U (W/m2.K)
100 mm	2.56	0.39
120 mm	3.08	0.32
150 mm	3.85	0.26
160 mm	4.10	0.24
180 mm	4.62	0.22
200 mm	5.13	0.19
250 mm	6.41	0.16

Technical Properties of FOAM-LOK™500 Foam Insulation

Thermal resistance R at a thickness of 100 mm		2.56 (m2.W/K)
Thermal conductivity coefficient λ	ČSN EN 12667	0.0346 (W/m.K)
Declared value of thermal conductivity coefficient λD	ČSN EN ISO 10456	0.037 (W/m.K)
Suggested value of thermal conductivity coefficient λu	ČSN EN ISO 10456	0.039 (W/m.K)
Density	ČSN EN 1602	8.4 (kg/m3)
Absorbency	EN 1609	0.97 (Kg/m2)
Compressive strength	EN 826	10.2 (kPa)
Tensile strength in plane of the board	EN 1608	19.2 (kPa)
Dimension change in width direction	ČSN EN 1604	-0.4 (%)
Dimension change in length direction	ČSN EN 1604	-0.4 (%)
Dimension change in thickness direction	ČSN EN 1604	-0.7 (%)
Reaction to fire	ČSN EN 13501-1+A1	Class E
Adhesion to substrate	ČSN 73 2577	0.04 (kPa)
Coefficient of diffusion conductivity δ	ČSN EN 12086	0.252
Diffusion resistance factor μ	ČSN EN 12086	2.8

The company Profipiána s.r.o. is a certified applicator of Honter Company, which is the exclusive distributor of spray polyurethane insulation materials from the American company LaPolla Industries within the European Union. The priority of Profipiána s.r.o. is to provide you with quality insulation, healthy living, and to eliminate rising energy costs in the future.

The company LAPOLLA Industries is a major American producer of spray polyurethane foams, coatings, and roofing systems for various applications. These technologies have been used in a wide range of industries for over 35 years. They are also used as highly efficient thermal and sound insulation for buildings. All products are developed with respect to environmental friendliness. The products are tested and meet all parameters and conditions required for use in the European Union.