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High-performance shrinkage reducers are specialized additives designed to minimize volume loss, cracking, and warping in materials. For concrete, agents like SikaControl® NS or Chryso®Eclipse® reduce capillary tension in pores, reducing shrinkage by up to 80%. For injection-molded polymers, agents like Foamazol™ 1001 reduce warping and sink marks.
Key High-Performance Shrinkage Reducers & Types
- Concrete/Cementitious Systems (Shrinkage Reducing Admixtures - SRAs):
- SikaControl® NS/SC: Liquid admixtures that reduce drying shrinkage, cracking, and curling, improving long-term durability.
- Chryso®Eclipse®: Liquid SRA designed to reduce shrinkage in high-performance concrete.
- MasterLife® SRA 035: Reduces capillary tension of pore water, a primary cause of shrinkage.
- SITREN®: Evonik products that reduce shrinkage caused by low humidity and environmental conditions.
- Polymer Foam & Plastics:
- Foamazol™ 1001: A chemical foaming agent (CFA) used to eliminate voids, reduce warping, and remove sink marks in structural parts and polycarbonate.
- Modified Microcrystalline Cellulose (T-MCC): A filler used in PBAT foam to create a "bridge-shell" structure, reducing shrinkage to less than 3.6%.
- Foam Stabilizers:
- Amphiphilic Nano Silica (ANS): Engineered to stabilize foam, enhancing foam concrete strength and structure, often used as an alternative to hydrophilic nano silica (HNS).
Key Performance Benefits
- Reduced Cracking: Significantly lowers the potential for shrinkage-related cracks in concrete slabs and structures.
- Dimensional Stability: Maintains the designed volume and shape of molded polymer parts.
- Improved Durability: Increases resistance to curling and improves overall structural life.
- Increased Compressive Resilience: Improves strength in, for instance, PBAT composite foams.
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Web results
High-Elasticity Foam Shrinkage-Reducing Masterbatch ZS1001
yysolematerial.com
https://www.yysolematerial.com › Additives
yysolematerial.com
https://www.yysolematerial.com › Additives
Shrinkage-stopping masterbatch ZS1001 is a high-quality polymer composite material designed to enhance the performance of foamed products.Read more
SikaControl® SC | Shrinkage Reducing and Compensating ...
Sika USA
https://usa.sika.com › ... › SikaControl® SC
Sika USA
https://usa.sika.com › ... › SikaControl® SC
SikaControl SC is a shrinkage compensating and reduction admixture used to produce concrete with reduced potential for drying shrinkage, cracking and curling.Read more
Preparation of shrink-resistant environmentally friendly foam
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
ScienceDirect.com
https://www.sciencedirect.com › science › article › pii
by H Tian2024Cited by 12 — The shrinkage issue has posed a significant challenge for the practical application of biodegradable foam materials. The varying temperature-pressure mode ...Read more
Closed-cell spray polyurethane foam: Shrinkage and how ...
The Construction Specifier
https://www.constructionspecifier.com › ccspf-shrinkage-...
The Construction Specifier
https://www.constructionspecifier.com › ccspf-shrinkage-...
Feb 10, 2025 — This article discusses conditions that lead to ccSPF shrinkage and separation from substrates and strategies to mitigate them.Read more
Is RetroFoam Shrinkage a Concern for Homeowners?
RetroFoam Injection Foam Insulation
https://www.retrofoam.com › blog › retrofoam-shrinkage
RetroFoam Injection Foam Insulation
https://www.retrofoam.com › blog › retrofoam-shrinkage
Jul 17, 2024 — High-quality injection foams like RetroFoam are designed to shrink by only about two percent. This is built into the product's formulation.Read more
· Review by Donald .C
Mixed to resist. Additives and active agents for the concrete ...
Evonik
https://products.evonik.com › assets › Admix_A...
Evonik
https://products.evonik.com › assets › Admix_A...
PDF
Our novel shrinkage reducing admixtures are based on the latest raw material technologies and significantly influence the process of plastic and drying ...Read more
52 pages
Products
Master Builders Solutions
https://master-builders-solutions.com › en-us › products
Master Builders Solutions
https://master-builders-solutions.com › en-us › products
Shrinkage-reducing admixture reduces potential for concrete cracking ... High-Performance Water-Reducing Admixture for Cementitious Mine Backfill ...Read more
People also ask
What is the best non shrink additive for concrete?
SikaControl®-40 is used for the production of high performance concrete with greatly reduced drying shrinkage, so that the durability of the concrete structure is significantly improved.
SikaControl®-40 | Special Purpose Products - Sika UK
Sika UK
https://gbr.sika.com › admixtures-for-readymixedconcrete
Sika UK
https://gbr.sika.com › admixtures-for-readymixedconcrete
What is a shrinkage reducer?
Shrinkage reduction refers to the mitigation of autogenous shrinkage in materials, achieved through the use of shrinkage reducing admixtures (SRA), which lower the surface tension of pore solution and enhance internal relative humidity.
Shrinkage Reduction - an overview | ScienceDirect Topics
ScienceDirect.com
https://www.sciencedirect.com › topics › engineering › s...
ScienceDirect.com
https://www.sciencedirect.com › topics › engineering › s...
What is Sika Rapid 1 used for?
SikaRapid®-1 increases the early strength of concrete and mortar without affecting the initial workability and final strength. SikaRapid®-1 provides the following advantages through accelerated hardening of the concrete: Faster turnaround of formwork in precast applications. Reduced or eliminated heat or steam curing.
SikaRapid®-1 | Hardening Accelerators - Sika India
Sika India
https://ind.sika.com › concrete-technologyadmixtures › s...
Sika India
https://ind.sika.com › concrete-technologyadmixtures › s...
Does water reducer make concrete set faster?
Water reducers, retarders, and superplasticizers are admixtures for concrete, which are added in order to reduce the water content in a mixture or to slow the setting rate of the concrete while retaining the flowing properties of a concrete mixture.
Use of Water Reducers, Retarders, and Superplasticizer
psu.edu
https://www.engr.psu.edu › Admixture › AdmixturesMain
psu.edu
https://www.engr.psu.edu › Admixture › AdmixturesMain
Web results
High-performance shrinkage-reducing agent for ready-mixed ...
ipros.com
https://pr.www.ipros.com › taiheiyo-m › product › detail
ipros.com
https://pr.www.ipros.com › taiheiyo-m › product › detail
The "Pacific Tetraguard AS21" is an organic shrinkage-reducing agent used in fresh concrete to reduce drying shrinkage cracking in civil engineering and ...Read more
Unprecedented Ultra‐High Expansion Ratio Foam for ... - PMC
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC12097086
PubMed Central (PMC) (.gov)
https://pmc.ncbi.nlm.nih.gov › articles › PMC12097086
by W Zhong2025Cited by 10 — The ultra‐high expansion ratio PMMA/PVDF foam demonstrates significant potential in energy conservation, reducing carbon footprints, and promoting ...Read more
SikaControl®-75 | Shrinkage Reducing Admixture
Sika USA
https://usa.sika.com › ... › SikaControl®-75
Sika USA
https://usa.sika.com › ... › SikaControl®-75
SikaControl®-75 is a shrinkage reducing admixture used to produce high performance concrete with greatly reduced drying shrinkage.Read more