Sikafloor® -619 Low viscosity epoxy impregnation
发布时间：2023/05/21
Product Data Sheet
Edition 03/03/2012EN
Sikaflors® -619
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Sikafloor® -619
Sikafloor® -619
Low viscosity epoxy impregnation
Product
Description
Sikafloor® -619 is a two part very low viscosity, solvent containing epoxy
impregnation material. When brushed or rolled over cured concrete, Sikafloor® -619
impregnates the concrete to provide a surface with increased hardness and
resistance to moisture penetration.
Uses
Sikafloor® -619 can be used as a sealer and surface hardener for
cementitious materials in:
Plant rooms
Warehouse and workshop floors
Structures exposed to extreme weather conditions
Marine structures
Characteristics /
Advantages
Sikafloor® -619 is easy to mix – at 1: 1 by volume ratio between components
Low viscosity for deep penetration (viscosity close to that of water)
Fast application
Reduces dusting and thus, easier cleaning of slabs
Increased resistance to abrasion, de-icing salts and mild chemicals
Enhanced resistance to oils, gasoline, kerosene, alkalis, acids, Organic and
inorganic salts and staining from spillage.
Increased impermeability of concrete reduces rate of penetration and
waterborne contaminants such as chlorides
Sikafloor® -619 is not a coating, therefore nothing to peel or flake off
Product Data
Form
Appearance / Colours
Clear to Pale Straw
Packaging
25 kg sets
Storage
Storage Conditions /
Shelf-Life
12 months from date of production if stored properly in original, unopened and
undamaged sealed packaging, in dry conditions at temperatures between +5°C and
+30°C.
Technical Data
Chemical Base
Epoxy
Specific Gravity
0.93
Viscosity
~ 25 cps (at +25°C)
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Sikafloor® -619
Flash Point
+25°C to +28°C
System
Information
Application Details
Consumption / Dosage
3 – 6 m2 per litre per coat (typical concrete)
7 – 8 m2 per litre per coat (very dense concrete)
2 – 3 coats required
Substrate Quality
The concrete substrate must be sound and of sufficient compressive strength
(minimum 25 N/mm2 ) with a minimum pull off strength of 1.5 N/mm2 .
The substrate must be clean, dry and free of all contaminants such as dirt, oil,
grease, coatings and surface treatments, etc.
If in doubt apply a test area first.
Application
Instructions
Mixing
Mixing Ratio: Parts A : B = 1 : 1 by volume
The resin (Part A) and the hardener (Part B) are mixed in equal Proportions by
volume. When required for application, the total contents should be poured into a
bucket and thoroughly mixed using a low speed (500 rpm maximum) mixer in a well
ventilated area, to prevent solvent from build-up, until it is homogeneous.
Leave for one hour before using.
Application Method
/Tools
Horizontal Surface
Sikafloor® -619 should be poured on to the prepared surface and spread
evenly with a soft brush, avoiding the formation of puddles. As much material
should be applied as the surface will absorb without any excess material on
the surface. The correct application rate will depend very much upon the
porosity of the concrete and should be determined on a small test area prior
to large scale application.
A second coat should be similarly applied 12 – 24 hours after application of the first
coat. A third coat may be necessary to give the required in-surface seal on porous
substrates but on typical good quality dense concrete, two coats will normally
be adequate.
It is important that the area is well ventilated to allow sufficient evaporation of the
solvent, particularly at low application temperatures.
Vertical Surface
Sikafloor® -619 can be brush or rolled applied. In well ventilated areas, Sikafloor® -
619 can be sprayed using a low pressure spray gun starting from the top
and progressively working down the application. Wear protective gear when
carrying out spray operations.
Cleaning of Tools
Clean all tools and application equipment with thinner immediately after use.
Hardened and/or cured material can only be mechanically removed.
Potlife
~ 8 hours (at +25°C)
Notes on Application /
Limitations
Do not thin Sikafloor® -619.
Application at temperatures below +5°C is not recommended.
Sikafloor® -619 is flammable and contains volatile solvents. It is essential that
during application, the area is well ventilated to prevent the build-up of
solvent fumes.
Paintwork and plastic fittings should be protected.
Finished surface is slightly glossy.
Relative Humidity at time of application must not exceed 90%.
Deteriorating, disintegrating or poor concrete surface cannot be made good with
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Sikafloor® -619
Curing Details
Curing Time
Initial (tack free) 2 – 6 hours (at +25°C)
Foot Traffic 24 hours (at +25°C)
Light Vehicle Traffic 3 days (at +25°C)
Final 5 – 7 days (at +25°C)
Value Base
All technical data stated in this Product Data Sheet are based on laboratory tests.
Actual measured data may vary due to circumstances beyond our control.
Local Restrictions Please note that as a result of specific local regulations the performance of this
product may vary from country to country. Please consult the local Product Data
Sheet for the exact description of the application fields.
Health and Safety
Information
For information and advice on the safe handling, storage and disposal of chemical
products, users shall refer to the most recent Material Safety Data Sheet containing
physical, ecological, toxicological and other safety-related data.
Notes:
The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in
good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under
normal conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and actual
site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability
arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written
recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended
application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties
must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the
most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.
Sika (China) Ltd.
No.28 Jingdong Road, Suzhou Industrial Park,
JiangSu,P.R.China
Postal Code: 215121
ISO 9001: 2008 ISO 14001:2004
Certificate No.:CC3576 Certificate No.:CC3577
The product is manufactured under a HKQAA
ISO9001/ISO14001
certified quality/environmental management system.
Construction
Construction
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