The MB-86 window and door system is a product with very good parameters, offering the possibility of satisfying a variety of user needs. The design of its sections has 3 variants depending on the requirements for saving thermal energy: ST, SI and AERO.​​​​​​​

MB-86 ST, SI, AERO

MB-86 is the world’s first aluminium window and door system to use Aerogel, a material with excellent thermal insulation. The advantages of the MB-86 system also include the high strength of the profiles, making it possible to construct structures of large size and weight.​​​​​​​ Features that affect the functionality and aesthetics of constructions made in the MB-86 system:

• wide thermal breaks with a new shape, allowing for an additional baffle in the profile insulation zone
• double-component central seal perfectly seals and thermally insulates the space between leaf and frame.
• a large range of sections guarantees the required aesthetics and strength of the structure
• glazing bars with additional sealing, available in three variants: Standard, Prestige i Style
• profile shapes adapted to the installation of various types of perimeter fittings, including concealed hinges
• the wide glazing range allows all common types of glass to be used, including double-glazed, acoustic or burglar-proof glass
• profile drainage available in two variants: traditional or concealed
• possible burglar-proof windows and doors in classes RC1 - RC3 and windows in class RC3i

Air permeability:	windows: class 4, doors: class 3, PN-EN 12207:2001
Watertightness:	windows class E 1500 Pa, doors: class 5A (200 PA) PN-EN 12208:2001
Thermal insulation (Uf):	MB-86 ST: windows: from 1.39 W/(m²K), doors: from 2.16 W/(m²K)
	MB-86 SI: windows: from 0.92 W/(m²K), doors: from 1.76 W/(m²K), doors: MB-86 SI+: from 1.49 m²K
	MB-86 AERO: windows: from 0.57 W/(m²K), doors: from 1.22 W/(m²K)
Wind load resistance:	windows: class C5, doors: class C1/B1, PN-EN 12210:2001

Based on the MB-86 system, it is also possible to manufacture panel doors, which offer rich aesthetic possibilities and are able to meet the expectations of the most demanding users.