CREFIX YELLOW
CREFIX Yellow: Perfect screed surfaces - protected & refined
The quality of the screed surface is decisive for the final result and the durability of the floor. However, unfavorable climatic conditions such as low humidity, strong draughts or direct sunlight can lead to rapid drying, cracking or a surface that is difficult to work on. With CREFIX Yellow, the intelligent smoothing aid and surface protection, you can ensure the quality of your screeds and concrete surfaces. Benefit from easier processing and a permanently protected, refined surface.
What is CREFIX Yellow?
CREFIX Yellow is a specially formulated emulsion that serves as a multifunctional additive for high-quality screeds and concrete surfaces. After application or smoothing, it forms a wafer-thin, monomolecular protective film that optimizes and protects the surface without leaving any residue for subsequent trades. CREFIX Yellow combines several key properties:
- Effective evaporation protection: Reduces the excessively rapid evaporation of surface moisture and thus protects against shrinkage cracks, cupping and deformation, especially in critical weather conditions.
- Optimum smoothing aid: Treated surfaces remain plastic for longer and can be smoothed much more easily and evenly, resulting in a higher surface quality.
- Strength-enhancing surface protection: The protective film is completely processed during hydration and has an additional strength-enhancing effect on the screed surface.
- Antilunker effect: Depending on application and incorporation, CREFIX Yellow acts as an antilunker agent and ensures a surface with fewer pores, ideal for sanded screeds.
This makes CREFIX Yellow an indispensable tool for screed layers and concrete contractors who place the highest demands on the workability, protection and final quality of their surfaces and want to achieve convincing results in the long term.
CREFIX Yellow: The added value for every screed and concrete surface
Maximum protection for permanently perfect surfaces
CREFIX Yellow offers far more than just a temporary processing aid. It is an intelligent protective mechanism that safeguards the quality of your surfaces right from the start:
- Protection against rapid drying out: The monomolecular film effectively reduces evaporation in unfavourable conditions (sun, wind, low humidity) and thus minimizes the risk of shrinkage cracks and cupping.
- No residues, full compatibility: CREFIX Yellow is fully processed during cement hydration and leaves no residues. This ensures problem-free adhesion for subsequent trades such as coatings or coverings.
- Increased surface strength: In addition to protection, CREFIX Yellow also has a strength-enhancing effect directly on the surface, resulting in a more resistant and durable screed or concrete layer.
Processing made easy, appearance perfected
Make your work easier and achieve an aesthetically pleasing result at the same time with the processing advantages of CREFIX Yellow:
- Significantly easier smoothing: Treated surfaces remain plastic and workable for longer. Smoothing is noticeably easier and results in a more even, high-quality surface.
- Reduced shrinkage cavity formation: CREFIX Yellow demonstrates its strength as an anti-shrinkage agent, particularly with sanded screeds, by promoting a less porous and therefore more visually appealing surface.
- Visible quality control: The temporary visible film (fluorescent dye that later disappears) allows easy control of the even application and ensures that the entire surface is optimally protected and treated.
One product, many advantages - developed for professionals
CREFIX Yellow is the sophisticated solution for demanding screed layers and concrete contractors who value efficiency and top quality:
- For screeds and concrete surfaces: Universally applicable for the production of high-quality screeds (also outdoors) and for finishing concrete surfaces.
- Compatible with fast cements: Supports and improves the processing of all rapid cements available on the market without negatively affecting their properties.
- Simple application: Can be sprayed on undiluted or diluted 1:1 with water, depending on the type of application and desired effect. Easy handling saves time and effort on the construction site.
Technical data & processing instructions for CREFIX Yellow
Product features at a glance
- Delivery form: Emulsion
- Appearance / Color: Yellow
- Density: approx. 0.99 +/- 0.01 g/cm³
- Chemical basis: Aqueous polymer emulsion with surface-active substances
- Shelf life: 12 months from production date (store frost-free!)
Important notes on the use of CREFIX Yellow
- Homogenize: Shake or stir CREFIX Yellow well before use!
- Temperatures & climate: Processing and ambient temperatures between +5°C and +30°C are ideal. Particularly effective in unfavorable building climatic conditions (low humidity, strong draughts, direct sunlight).
- Substrate preparation: The screed or concrete should be wet, but should not be standing wet.
- Application & dosage: Apply evenly and uniformly with a spraying device (e.g. formwork oil sprayer, spray mist). Dosage approx. 1 liter for 5-8 m², depending on the type of application. Can be used undiluted or diluted 1:1 with water.
- Application: Apply to the wet concrete/screed and smooth in. The surface can then be sprayed again. Do not use again once the damp sheen has disappeared.
- Visibility & residue: Contains a fluorescent dye for optimum application control, which disappears completely and invisibly after drying and does not cause any color change. Leaves no residue for subsequent trades.
- Protective measures: Observe the usual protective measures (e.g. gloves) and regulations on occupational hygiene during processing.
Downloads & templates for CREFIX Yellow
Product description CREFIX Yellow
All details on the application, properties and benefits of CREFIX Yellow smoothing aid & surface protection.
📄View product description(PDF)
CREFIX dosing confirmation
Form for documenting the application and correct dosing of Crefix products on your construction site.
📋View dosing confirmation(PDF)
Frequently asked questions (FAQ) about Crefix Yellow
CREFIX Yellow is primarily a smoothing aid and surface protection for fresh screeds and concrete surfaces. It reduces the rapid evaporation of surface moisture, facilitates smoothing, has a strength-enhancing effect on the surface and can be used as an anti-lowering agent.
After application, CREFIX Yellow forms an extremely thin, monomolecular protective film on the screed or concrete surface. This film slows down the evaporation of water, especially in unfavorable climatic conditions such as strong sunlight, wind or low humidity.
No. The protective film of CREFIX Yellow is completely processed during the hydration of the cement and leaves no residue that could impair subsequent trades such as coatings or the laying of floor coverings.
Yes, surfaces treated with CREFIX Yellow remain plastic and "open" for longer. This means that the screed or concrete can be smoothed more easily and evenly, resulting in a higher surface quality.
Yes, depending on the application and incorporation on the screed surface, CREFIX Yellow also acts as an anti-lowering agent. It helps to achieve a surface with fewer pores, which is particularly advantageous for sanded screeds.
No. CREFIX Yellow contains a fluorescent dye that only serves to make an even application visible on the surface. This dye disappears completely after drying and is not visible or color-changing in any way.
CREFIX Yellow is usually applied to the wet concrete or screed using a spraying device (e.g. formwork oil sprayer) and smoothed in. The surface can then be sprayed again. Approx. 1 liter is required for 5-8 square meters. It can be applied undiluted or diluted 1:1 with water, depending on the type of application.
Yes, CREFIX Yellow is also suitable for exterior screeds to protect them from drying out too quickly and to improve the surface quality.
Yes, CREFIX Yellow can be used for all rapid cements available on the market and can support their processing.
CREFIX Yellow: For flawless surfaces that impress and last
With CREFIX Yellow, you can rely on an intelligent partner that ensures the quality and durability of your screed and concrete surfaces right from the start. Put an end to problems caused by drying out too quickly or surfaces that are difficult to work on - rely on proven surface protection and an effective smoothing aid in one.
Experience how CREFIX Yellow makes processing easier, protects your surfaces from unfavorable weather conditions and contributes to a visibly better, stronger and, if required, low-void quality. Whether for demanding exposed screeds, perfectly prepared substrates or robust concrete surfaces - CREFIX Yellow is the professional solution for permanently convincing results.
Our Crefix application experts are on hand to help you get the best out of CREFIX Yellow for your specific projects.
Contact us for specialist advice or request further information on CREFIX Yellow. We look forward to supporting you!