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Compatibility of sealants with PMMA and PC
Polymethyl methacrylate (PMMA) and polycarbonate (PC) are plastics that are frequently used in construction and industry. Both products are supplied in (glass) clear and colored versions. There are also glass fiber reinforced versions. The materials are …
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ApplicationsMirror bonding
As, for esthetical reasons, mirrors are mostly applied to walls and doors without any mechanical support, special adhesives are used to fasten these mirrors ”invisible” onto the supporting surfaces. Mirrors are sensitive products, because of which not ev…
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ConceptsZwaluw FireProtect
Products for Passive Fire Protection are the primary means, included in the construction of a building, limiting flames, heat and smoke to spread and significantly increase the fire safety.
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FAQChemical resistance silicones
With regards to the effects of solvents and industrial chemicals on silicone rubber, the following data has been complied: Silicones are chemically inert and are attacked by very few common materials. Among them are concentrated sulphuric acid, hydrof…
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FAQPaint cracking in acrylic paints
Although in general acrylic sealants can be painted very well both with solvent based paints as well as water based paints (for instance acrylic latex) it is possible that the paint film on the acrylic joint can crack.
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FAQInfluence of temperature in storage and/or transport
In the technical documentation for of all Den Braven’s products the minimum shelf life after production is given as between +5°C and +25°C. When products are stored in higher temperatures this will shorten their shelf life. A maximum temperature of +45°…
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ApplicationsFinishing of sealant joints
The following is important: 1. Processing equipment 2. Application method 3. Finishing method
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ApplicationsSuitability and pre-treatment of surfaces
For an optimal functioning of a sealant joint it is of essential concern that the sealant will make a good bonding on the surface it is applicated to. Indeed if the bonding fails, the function of sealing partly fails. The strength of bonding between sea…
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LegalDoP finder
As of July 1st 2014, the Construction Products Regulation (CPR, EU 305/2011) became effective for sealants throughout the European Union. This regulation requires all construction products for which a harmonized standard exists, to be CE marked and suppl…
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FAQDiscoloration in sealant joints
Sealants are used in building and industrial applications in many places under various circumstances and on several substrates. It may occur that the sealant joints show discoloration after a couple of days or weeks. In general the joints can be conside…
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