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FAQ
General product questions
Should I use a primer before applying silicone or adhesive?
On a dry, dust- and grease-free surface it is in most cases not necessary to use a primer.
Upon opening the tube, I see a small layer of oily liquid?
This phenomenon can occur sporadically and is called leaching.
What is the lifespan/durability of my product?
All DL Chemicals' cartridges, foils, spray cans and buckets are marked with an expiry date. How long can I keep an opened cartridge? And can I still use expired product?
Sealants
What is the best way to clean my surfaces?
Surfaces can be degreased with Parasilico Cleaner or a fire alcohol, MEK or ethanol.
What is the best way to finish just applied sealant?
Finishing should always be done before the sheet forms.
Under what weather conditions is it best to filling a joint?
Temperatures below +5°C or above +40°C can affect the application of the sealant.
How do I remove wet and/or cured sealant?
Freshly applied silicone can be removed with Parasilico Cleaner.
How many meters of joint can be realized with a tube?
Thanks to the handy calculator in our Product finder, you can very easily calculate how much product you need for your application. And this for different types of products such as joint sealants, adhesive sealants, PU fillers and adhesive foams and ...
Which products are UV resistant?
Glazing joints are highly susceptible to UV exposure. For this purpose, we recommend the use of our silicone products.
What products can I use on natural stone?
For such joints, always use Parasilico NS or a hybrid sealant from Parabond.
Which products can be painted?
Acrylates, PU sealants, hybrid and MS polymers can be painted with the most common paints.
What is the maximum temperature that silicones can withstand?
For silicones, the maximum temperature is +150°C, for acrylates +80°C and for hybrid polymers +90°C.
The silicone will turn yellow over time, why is that?
Silicones may yellow due to lack of sunlight or reaction with certain substrates.
Adhesives
What requirements must the substrate meet to be able to install parquet?
The substrate must be dry, level and sufficiently flat and strong with good surface cohesion.
What is meant by an initial tack?
Heavy materials attached to walls or ceilings cannot always be supported until the adhesive has cured.
In these cases, an adhesive sealant with a high initial tack provides sufficient adhesive strength to carry the materials independently...
what is the importance of choosing the right adhesive for parquet?
The choice of a parquet adhesive depends on the nature and flatness of the substrate, the properties and dimensions of the floor elements, ...
PU foams
Is cured PU foam resistant to water or UV?
PU foam is not resistant to UV rays and should therefore always be repainted or plastered if there is direct sunlight.
Can I store an opened can of PU foam for a long time?
After using a pipette foam canister, you can simply fold the pipette over and push it down onto the closure piece developed for this purpose. This way, the remaining foam does not come in contact with the air. This method gives you the opportunity to...
How to correctly apply PU foam?
A PU foam will create better padding and adhere better in a humid environment.
How do I apply adhesive foam to insulation panels?
Apply in grooves, with maximum unevenness between insulation and substrate of 1 cm...
Extranet
I created an account but can't log in right away yet?
When you create an account on our extranet it must be manually approved by one of our employees. That way we can also link your account to the correct customer number in our system so you can consult all price and order information. We will try to activate...
Roof & Waterproofing
How can I protect my building from groundwater?
Depending on the conditions of the water load, various solutions are possible
How can I treat rising damp?
To combat rising damp, the injection of a moisture-resistant agent is an excellent and effective solution.
How do I install insulation on my flat roof?
Primer de ondergrond indien nodig (zie instructies van fabrikant dakdichting/dampscherm). Start de verlijming van de isolatiepanelen op het verste punt van het daktoegangspunt en werk naar het toegangspunt toe, zodanig dat er niet op de verlijmde panelen gelopen wordt...
How to protect against rainwater infiltration?
Walls and porous roofs can be easily protected by the application of a hydrophobic agent.