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Questions and Answers
What is the maximum percent elongation typically mentioned for movement in internal procedures?
What is the maximum percent elongation typically mentioned for movement in internal procedures?
- 20%
- 100% (correct)
- 35%
- 50%
What does the ASTM C 719 document primarily relate to?
What does the ASTM C 719 document primarily relate to?
- Thermal expansion
- Sound insulation
- Chemical resistance
- Movement in materials (correct)
What is the time frame specified for certain measurements in the document?
What is the time frame specified for certain measurements in the document?
- 4 hours
- 3 hours
- 1 hour
- 2.5 hours (correct)
At what temperature range does the document suggest performing certain internal procedures?
At what temperature range does the document suggest performing certain internal procedures?
Which of the following is NOT a typical percentage of movement as defined by involved parties?
Which of the following is NOT a typical percentage of movement as defined by involved parties?
What is the defined travelling speed mentioned in the criteria?
What is the defined travelling speed mentioned in the criteria?
What is the failure criterion governed by ASTM C 920?
What is the failure criterion governed by ASTM C 920?
How long is the maximum duration required for the test based on the class?
How long is the maximum duration required for the test based on the class?
What is emphasized regarding statements made about the product?
What is emphasized regarding statements made about the product?
What is the significance of stating no specific class in compliance?
What is the significance of stating no specific class in compliance?
What temperature range is presented for testing?
What temperature range is presented for testing?
What does the ASTM C 920 standard state about movement?
What does the ASTM C 920 standard state about movement?
What is the requirement for formulation according to the presentation?
What is the requirement for formulation according to the presentation?
What is one main advantage of Sikaflex®-403 Tank & Silo in terms of sustainability?
What is one main advantage of Sikaflex®-403 Tank & Silo in terms of sustainability?
Which property makes polyurethane (PU) technology preferable for the Sikaflex®-403 sealant?
Which property makes polyurethane (PU) technology preferable for the Sikaflex®-403 sealant?
How long did the approval and certification process for Sikaflex®-403 take?
How long did the approval and certification process for Sikaflex®-403 take?
Which of the following is NOT an application area for Sikaflex®-403 Tank & Silo?
Which of the following is NOT an application area for Sikaflex®-403 Tank & Silo?
What is a unique characteristic of Sikaflex®-403 Tank & Silo regarding its application?
What is a unique characteristic of Sikaflex®-403 Tank & Silo regarding its application?
What is the overall performance benefit of using Sikaflex®-403 Tank & Silo?
What is the overall performance benefit of using Sikaflex®-403 Tank & Silo?
Which type of customers are likely to benefit from Sikaflex®-403 Tank & Silo?
Which type of customers are likely to benefit from Sikaflex®-403 Tank & Silo?
Why is it important that Sikaflex®-403 has dedicated rheology properties?
Why is it important that Sikaflex®-403 has dedicated rheology properties?
What effect does the release of CO2 have during the polymerization process?
What effect does the release of CO2 have during the polymerization process?
What type of chemical substances do STP/MS release during curing?
What type of chemical substances do STP/MS release during curing?
Which of the following is a key characteristic of polyurethane sealants?
Which of the following is a key characteristic of polyurethane sealants?
Which of the following competitors offers a product for microbiological loads?
Which of the following competitors offers a product for microbiological loads?
What was the total investment required to obtain German approval for digestion areas in agriculture?
What was the total investment required to obtain German approval for digestion areas in agriculture?
Regarding movement capability, how does Sikaflex TS Plus compare to Sikaflex-403 Tank & Silo?
Regarding movement capability, how does Sikaflex TS Plus compare to Sikaflex-403 Tank & Silo?
Which product has received CE marking for floor joints according to EN15651-4 PW?
Which product has received CE marking for floor joints according to EN15651-4 PW?
What is a common issue customers face with competitor products?
What is a common issue customers face with competitor products?
What is the change in mechanical properties after 2 years of immersion in the specified silage liquid?
What is the change in mechanical properties after 2 years of immersion in the specified silage liquid?
After how many days does the silage liquid show a mass change of -1.0% upon re-drying?
After how many days does the silage liquid show a mass change of -1.0% upon re-drying?
What is the observed change in volume for the silage liquid after 28 days at 40°C?
What is the observed change in volume for the silage liquid after 28 days at 40°C?
What does the testing data indicate about the effect of immersion in the silage liquid on joint sealant?
What does the testing data indicate about the effect of immersion in the silage liquid on joint sealant?
What type of acid is present in the silage liquid tested?
What type of acid is present in the silage liquid tested?
Which result indicates the highest change in volume after 180 days @ 40°C?
Which result indicates the highest change in volume after 180 days @ 40°C?
What is the pH condition of the silage liquid as indicated by its composition?
What is the pH condition of the silage liquid as indicated by its composition?
What does a change in mass of 0% after re-drying liquid manure indicate?
What does a change in mass of 0% after re-drying liquid manure indicate?
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Study Notes
Sikaflex®-403 Tank & Silo Sealant
- A new sealant designed for tank and silo applications, specifically for agriculture and industry.
- It offers significantly increased performance in durability, temperature resistance, and movement capability.
- It is a sustainable solution, suitable for biodigesters and protecting groundwater from leakage.
Applications and Target Customers
- Designed for segmented and bolted steel tank systems as well as prefabricated concrete element solutions.
- Key customers include system providers like Permastore, Stallkamp, Schumann Tank, Henze, concrete precasters, and installation contractors.
- Sika aims to grow its market share in the prefabricated concrete element solutions segment.
- Sikaflex®-403 Tank & Silo is ideal for countless joints exposed to organic acids.
Why Polyurethane (PU) is the Preferred Technology
- Long Open Time: Essential for segmented steel tank construction, allowing for ease of application.
- Dedicated Rheology: Easy to extrude, non-sagging, and smooth application.
- Curing Properties: PU reliably cures in segmented steel tank applications, unlike STP/MS or silicones, which can be hindered by limited access to humidity.
- Mechanical Properties: Unique PU microstructure with hard and soft segments provides strength, toughness, resistance, elasticity, and flexibility.
Competitors
- SABA Ecoseal AC (STP-based) for biogas plants.
- SABA Ecoseal HM (STP-based) for joints with microbiological loads, drinking water, and sewage treatment water.
- Manus / ManusBond in Americas.
- Local suppliers in Asia (e.g., Guibao, Huagui).
Customer Pain Points and Opportunity for Sika
- Lack of technical service from competitors.
- Limited comprehensive test certifications from competitors.
- Existing competitor products have generally been insufficient.
- Sika's product, with German approval for use in digestion areas for agriculture, required 100 kCHF in testing investments and 4 years of testing and evaluation.
Comparison to Sikaflex® TS Plus
- Sikaflex®-403 Tank & Silo:
- Movement Capability: 20 HM (EXT-INT CC)
- CE Marking: Yes
- Over Drivable: Yes
- Sikaflex TS Plus:
- Movement Capability: 12,5 HM
- CE Marking: No
- Over Drivable: No
Testing According to DIBT Guidelines
- Long-term (2 years) immersion test results in silage liquid (3% Lactic acid, 1.5% Acetic acid, 0.5% Butyric acid) showed no change in mechanical properties.
- All measured values remained within the tolerance of the testing method.
External Tests Results – Change in Mass
- Exposure to silage liquid, liquid manure, and sulfuric acid for 28 days, 90 days, and 180 days at 40°C.
- Results showed no swelling, indicating no damage from bucket of wheel loader.
- Slight mass change in silage liquid and sulfuric acid, but within acceptable limits.
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