| |
 |
|
Subfloor Preparation & Adhesives
Preparation & condition of the baseBefore
any adhesive is applied it is necessary to ensure that
the subfloor or base is structurally sound, smooth,
clean, dry, free from dust, grease, oil, paint, polish
or any other contaminant, which may affect adhesion. A
concrete subfloor or cement/sand screed must be fully
cured and without laitance. An effective damp proof
membrane must be provided, where necessary, in relation
to the floor covering used. The site conditions should
comply with British Standards 8203 and good ventilation
needs to be provided to enable adhesives to dry.
Most Epoxy/PU Adhesives are slow to cure. These
adhesives should be kept free of foot traffic until
cured. Ensure the back of the Floorcovering remains in
contact with th adhesive until cured. Sandbagging
may be necessary but always refer to the Adhesive
manufacturer's recommendations.
Concrete/screed drying timesPlease remember
that 150mm of concrete will often take more than 12
months to dry (refer to BS8203 document)
The
moisture content of the concrete/sand cement subfloor
must not exceed 75% RH as measured by hygrometer before
any adhesive or floor smoothing compound may be applied.
If the moisture content is excessive a Tremco Surface
Membrane system is recommended.
Important Note:
Calcium Sulfate/Gypsum based Screeds should never be
treated in the same way as concrete or sand cement. If
in doubt ask for a full Screed Specification and contact
the Tremco Technical Department on 01753 691696.
Underfloor HeatingEnsure that the Underfloor
Heating System is fully commissioned, tested and brought
up to maximum design operating temperature before
applying Surface DPMs and Underlayments. The surface
temperature of the concrete/sand cement screed must not
exceed 27°C when fully commissioned, as per the British
Standards codes of practice and the Floorcovering
industry maximum agreed level.
The underfloor
heating system should be switched off at least 48 hours
before, during and after the installation of the floor
coverings, adhesives, Surface DPMs and underlayments and
gradually recommissioned in accordance with the
manufacturer'
recommendations.
Screed/concrete surface
temperatures should be checked using a Raytek (or
similar) hand held monitor. Note! Higher surface
temperatures will accelerate the curing of smoothing
compounds, adhesives and surface DPMs and may reduce
overcoating and installation windows (Please refer to
Tremco product literature and contact your Tremco
Technical Representative for assistance).
During
the period of decommissioning an alternative heating
source should be provided, if required, to ensure that
the area of installation is kept at a constant
temperature of between 18°C – 27°C.
Failure to
follow these guidelines can result in the floorcovering
de-bonding, shrinkage, joints opening,
and on some
occasions discolouring.
Adhesive SelectionDalsouple rubber floor
covering can be laid with the following TREMCO or MAPEI
products.
Treadfast Floor Membranes, Smoothing Compounds and
AdhesivesTremco are a global organisation
manufacturing high performance Surface Damp Proof
Membranes, Smoothing Compounds, and Specialist Flooring
Adhesives for use in Department Stores, Shops, Schools,
Hospitals and most commercial and Industrial buildings.
Our goal is to understand our customers' needs and
satisfy them by providing problem solving solutions. Our
free of charge Specification and advice service includes
information on the following:
• Smoothing
Compounds which can usually receive floor finishes after
24 hours (Treadfast Unitex & Treadfast
Unismooth).
• Surface Damp Proof Membranes
(including Treadfast ES3000, Treadfast Fastrak Universal
and Treadfast One Coat Universal)
• Primers for
most surfaces including calcium sulphate
screeds
• Specialist Adhesives including
conductive adhesives for virtually all internal and
external applications.
Tremco Limited,
manufacturer of sealants, adhesives and weatherproofing
technologies is commited to excellence in protecting the
environment. A copy of their Environmental Policy
Statement is available by contacting the company address
below.
The following Tremco products are
recommended for Dalsouple rubber floor
coverings.
Please Note: After
installation of the covering, most flooring adhesives
will require 24-48 hours to develop strength
performance. During this period, maintain constant
conditions of temperature and humidity and keep the area
free from other trades and casual foot traffic.
For more information
contact:
Tremco Limited (European
Headquarters)
393 Edinburgh Avenue, Slough SL1
4UF
Telephone 01753 691696
Fax 01753
822640
Website www.tremcoeurope.com
Email:
flooring@tremcoeurope.com
Mapei Floor Preparation Systems &
AdhesivesHave Sales and Technical offices worldwide
with over 140 production facilities.
Mapei is the
world?s leading manufacturer of adhesives for the
Construction Industry. Mapei offer the complete
installation system which will give many years of
durability when the correct preparation, applications
and cure times are carried out with reference to the
relevant data sheets.
New or repair
Screeds which can be utilised after 24 hours.
(Mapecem)
Self Levelling
Compounds which can be laid up to 30mm thick in
1 application. (Ultraplan Maxi)
Damp and
Vapour Proof Barriers applied as a surface
membrane. (Primer MF)
Primers to
consolidate and seal weak surfaces. Primer G: Mapeprim
SP Eco Primer.
Conductive
Adhesives for specialised conductive
flooring
Adhesives which can be
used for all types of installations whether it be
domestic, commercial or heavy industrial and in some
cases external applications.
Mapei -
taking care of the environment
Products that
are not only safe for the end user, but for the
environment, products that have a very low or zero
emissions of Total Volatile Organic Compounds, products
that perform to the highest standards ? are all provided
through Mapei?s technical expertise. Mapei?s commitment
to this market began in the early 1970s with the
introduction of water-based and solvent-free products
and as a member of Responsible Care? ? the company is
totally committed to the ongoing development of safer
products, which have been and will continue to be used
worldwide.
For more information
contact:
Mapei (UK) Ltd,
Mapei
House,
Steel Park Road Halesowen,
West Midlands
B62 8HD
tel 0121 508 6970
fax 0121 508
6960
Email
technical@mapei.co.uk | | |
| |
