Drybond
Multifunctional additive for enhancing the mechanical and adhesion properties of cementitious mixtures for screeds, plasters, and thin-layer leveling compounds
Drybond is a single-component concentrated liquid additive based on special high-performance polymers dispersed in an aqueous vehicle, fully compatible with all types of mineral binders used in the construction industry.
When properly dosed, Drybond significantly improves the technical and performance characteristics of cement-based mortars and mixtures, increasing adhesion, mechanical strength, impermeability, and system elasticity.
The product also contributes to enhanced mixture durability by improving resistance to atmospheric agents and chemical aggressors. It is particularly suitable as an additive for preparing high-adhesion cement slurries.
The action of the polymers contained in Drybond increases resistance to abrasion, cracking, and freeze-thaw cycles, enabling thin-layer applications. The product also reduces surface dusting and the water/binder ratio of mixtures while maintaining workability and promoting proper curing of the cementitious conglomerate.
Features
Certifications
EN 934-2
Main features
- Improves adhesion on substrates with low surface roughness
- Promotes proper and uniform curing of mortars and concretes
- Increases abrasion resistance
- Improves impermeability of the cementitious conglomerate
- Increases resistance to freeze-thaw cycles
- Improves resistance to penetration of oils, greases, and surface contaminants
- Increases mechanical performance, both in compression and flexure
- Enables the production of cohesive, thixotropic, and easily workable mixtures
- Reduces hygroscopic shrinkage and crack formation
Fields of application
- Preparation of traditional and premixed plasters
- Application of cement-based rendering coats with high bonding capacity
- Preparation of cement mortars for restoration and repair interventions
- Surface finishes for concrete products and precast elements
- Bedding mortars for tile or slab cladding and flooring
- High-performance cement screeds
- Cement mortars for finishing surfaces subject to heavy abrasion, applied using the “fresh-on-fresh” system, such as industrial flooring, ramps, and channels
- Production of high-adhesion cement slurries
Technical specifications
Packaging
Color
White.
Appearance
Liquid.
Storage
12 months from production date.
Storage conditions
Store properly in the original, sealed, intact packaging, protected from frost and direct sunlight exposure, at temperatures between +10°C and +35°C. Higher temperatures may deteriorate the product. Low temperatures may cause partial crystallization of the product; if this occurs, shake the container manually and store in warm environments.
Application data
Theoretical consumption
Depending on the dilutions applied.
Yield
Depending on the dilutions applied.
Diluent
Water.
Application temperatures (substrate and environment)
Minimum +5°C | Maximum +40°C
Application info
Substrate preparation
Surfaces to be treated must be solid, cohesive, clean, and free of dust, oils, greases, dirt, residues from previous coatings or surface treatments that could compromise proper adhesion and penetration of the product. Any friable, degraded, or imperfectly adhered parts must be removed prior to application of mortars or mixtures containing Drybond.
Product preparation
Thoroughly homogenize the product by manually shaking the sealed container before use.
Dilute Drybond with clean water according to the dilution ratio indicated in the following table. The water-polymer mixture thus obtained must be used as mixing liquid, adding it gradually to the product to be mixed. The mixture must be blended using a low-speed electric drill for 2–3 minutes until a homogeneous, fluid, lump-free mixture suitable for the intended application is obtained.
Cleaning of tools
Tools are cleaned with water immediately after use.
Other indications
- Do not apply the product on frozen substrates, during thawing, or when there is a risk of frost within 24 hours after application.
- Protect treated surfaces from rapid drying caused by direct sunlight, wind, or high temperatures.
- Use of the product in high dosages may result in delayed setting and hardening times of the cement binder.
- Diluted product must be stored exclusively in the original container, tightly closed, protected from sunlight and heat sources, and used within a maximum of 5 days from dilution.
- The product is susceptible to frost.
- Do not use the product undiluted as a primer or bonding bridge; the product must always be mixed with cement or cement-based mixtures.
- Do not apply at temperatures below +5°C or above +40°C.
- For uses not expressly indicated or for further information, contact Drykos Technical Support Service at +39 0171 1874992 or write to [email protected].
Technical performance
Environment and safety
VOC
Product not intended for uses covered by Directive 2004/42/EC.
Safety
For information and advice on safety, handling, storage, and disposal, users of the product must refer to the most recent version of the Safety Data Sheet, which provides information on the physical, ecological, and toxicological characteristics of the product. If necessary, request the updated Safety Data Sheet by contacting Customer Service at +39 0171 1874992 or writing to [email protected].
Product compliant with the requirements of Regulation (EC) No. 1907/2006 (REACH) and Annex XVII, entry 47, and subsequent amendments and additions.
Use
Product for professional use.