Sikaflex® TS Plus
at agricultural and biogas facilities and domestic sewage systems. DIBt Approval, Z-74.62-151
Sikaflex® TS Plus is a one-part polyurethane, moisture curing, elastic sealant. Provides a waterproof seal with good mechanical properties, is resistant to liquid manure, silage liquids, chemicals and remains elastic over a wide range of temperature.
- Resistant to domestic sewage, liquid manure and
silage liquids - Restistant to numerous chemicals
- Good mechanical properties
- High modulus elastic sealant
- High tear strength
- Application at concrete with the system-primer
Sika® Primer-115
Usage
- Designed for sealing steel containers built in sections such as enamelled steel or stainless steel tanks
- For sealing between overlapping steel segments and the bottom joints of steel containers.
- Corrosion protection on the edge of the enamelled steel plates
- For sealing storage containers for water and many other liquids including liquid manure
- Sealing between the steel segments and protection of the edges in containers used with temperatures between + 30 and + 40 °C (mesophilic container)
- Sealing between the steel segments in containers with temperatures up to + 55 °C (thermophilic
container) - For sealing of containers out of concrete and silage silos (temperature between + 30 and + 40 °C)
- Sealing of domestic sewage systems
Advantages
- Resistant to domestic sewage, liquid manure and
silage liquids - Restistant to numerous chemicals
- Good mechanical properties
- High modulus elastic sealant
- High tear strength
- Application at concrete with the system-primer
Sika® Primer-115
Packaging
600 ml cylindrical foil pack: 20 foil packs per box
Colour
Black, for applications according to DIBt approval (Germany) Z-74.62-151
other colours for other applications: concrete grey
Product Details
CERTIFICATES AND TEST REPORTS
- Chemical Resistance liquid manure,
SKZ, Report No 69298/05-I - Chemical Resistance silage liquids,
SKZ, Report No 69298/05-II - Migration Behaviour EN 1186, EN 13130,
CEN/TS 14234, ISEGA, Certificate - Sewage Installations waste water,
SKZ, Report No 36142/98 - DIBt, national technical approval (Germany)
Z-74.62-151
Composition
Polyurethane
Shelf life
12 months from date of production
Storage conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +25 °C. Always refer to packaging.
Density
| 1,25 kg/l | (ISO 1183-1) |
Shore A hardness
| 40 (after 28 days) | (ISO 868) |
Secant tensile modulus
| 0,75 N/mm2 at 100 % elongation (+23 °C) | (ISO 8339) |
Elastic recovery
| >80 % | (ISO 7389) |
Tear propagation resistance
| 8,0 N/mm | (ISO 34) |
Movement capability
| 7,5% at applications according to DIBt approval Z-74.62-151 | (ISO 9047) |
| 15% at other applications |
Chemical resistance
Resistant to water, seawater, dilute alkalis, neutral water, dispersed
detergents and domestic sewage, liquid manure, slurry, manure,
poultry manure and silage liquids.
Not resistant to alcohol, organic acids, concentrated alkalis, concentrated acids, chlorinated and aromatic hydrocarbons.
Sikaflex® TS Plus is sensitive to high concentrations of nitrogen
oxides (NOx), such as those present in grass or corn silos when the silage
process is not functioning properly. This can cause depolymerisation of
the sealant.
Note: The designer of the process system must be aware that all applications, including mesophilic and thermophilic digestion, are dependent on pH and content analysis which must be addressed at the specification phase.
The behaviour of chemical mixtures can be complex and resistance must always be confirmed for each component of the complete tank system to determine its suitability including the sealant.
Service temperature
Dry -40 °C min. / +70 °C max.
Wet ≤ 40 °C in movement joints and
≤ 55 °C* as overlap sealing in bolted steel tanks
* Continuous maximum service temperatures are subject to the behaviour of chemical mixtures, which can be complex. The designer of the process system must be aware that all applications, including mesophilic and thermophilic digestion, are dependent on pH and content analysis which must be addressed at the specification phase.
Joint design
The joint dimensions must be designed to suit the movement capability of the sealant.
In construction all relevant regulations are applicable such as the AwSV (Germany), DIN 11 622 including annex. 1 and other technical guidelines or standards i.e. the sealant must be specified and included in the design of the containment system. Special care must be taken where movement of the container sections can occur. If there are large contact surfaces with the stored material, the sealant must be resistant to it over a long period of time. The sealant must only be subjected to stress including chemical exposure after full curing so that its adhesion and performance is not
impaired.
Minimum joint width for movement joints: 10 mm
Saw cut joints with a width below 10 mm, are for crack control and not suitable as movement joints.
Joint design acts in accordance with the general technical guidelines.
In containers used with renewable raw materials (mesophilic operational mode) up to a temperature from + 30 °C to + 40 °C the sealant could be used for the bottom joints and as a corrosion protection. Up to a temperature of + 55 °C the sealant could only be used for the sealing between overlapping steel segments (thermophilic operational mode).
Application
Backing material
Use closed cell, polyethylene foam backing rod.
Sag flow
0 mm (20 mm profile, 50 °C) | (ISO 7390) |
Ambient air temperature
+5 °C min. / +40 °C max.
Substrate temperature
+5 °C min. / +40 °C max.
min. +3 °C above dew point temperature
Substrate moisture content
Dry
Curing rate
| 2 mm/24 hours (+23 °C / 50 % r.h.) | (CQP* 049-2) * Sika Corporate Quality Procedure |
Skinning time
| 5 hours (23 °C / 50 % r.h.) | (CQP 019-1) |
SUBSTRATE PREPARATION
The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or
friable particles. Also free from paint and coating.
Please consider the dew-point. The substrate temperature has to be 3°C above the determined dew-point temperature. The material surface has to be free of condensation.
For optimum adhesion and joint durability, the following substrate priming (and/or pre-treatment) procedures must be followed.
The statet waiting times refer to temperatures above 15°C. Lower temperatures extend the waiting time.
For applications according to DIBt approval
Z-74.62-151
Approvable contact materials to DIBt approval:
Prefabricated concrete elements and cast-in-place concrete.
Concrete must be primed using Sika® Primer-115
applied by brush. Prevent excessive application of primer to avoid causing puddles. Before sealing, allow a waiting time of min. 30 minutes (max. 8 hours).
For applications beyond the DIBt approval
Blank metals has to be cleaned with fat-dissolving cleaning agents, e.g. Sika® Reinigungsmittel-5,
waiting time 10 minutes.
Sika® Aktivator-205: Adhesion promoter for the joints between the overlapping stainless steel segments and in generally for the enamelled steel by using a clean towel/cloth. Two component epoxy coatings should be grinded with an abrasive pad before Sika® Aktivator-205 is used as adhesion promoter. Before sealing, allow a waiting time of min.15 minutes (max. 6 hours).
Stainless steel, galvanised steel and powder coated metals has to be slightly roughend with a fine abrasive pad. Clean and pre-treat using Sika® Aktivator-205 applied with a clean paper towel. Afterwards use Sika® Primer-3 N applied by brush or melamine-sponge (e.g. Basotect®). Before sealing, allow a waiting time of min. 30 minutes (max. 8 hours)
Additionally consult the tank manufacturer's instructions for their specific preparation and priming recommendations.
Adhesion tests on project specific substrates must be performed and procedures agreed with all parties before full project application.
Note: Primers and activators are adhesion promoters and not an alternative to improve poor preparation/cleaning of the joint surface. Primers also improve the long term adhesion performance of the sealed joint.
Contact Sika Technical Services for additional
information.
CLEANING OF EQUIPMENT
Clean all tools and application equipment immediately after use with Sika® Remover-208. Hardened material can only be removed mechanically. For cleaning skin, use Sika® PowerClean wipes.