Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
- Product Properties
BIOLAY 500 is a plant based barrier coating. It is fluorine free and does not generate microplastics. The aqueous solutions of BIOLAY 500 can be applied on paper and cardboard. BIOLAY 500 has been optimized for optimal oil repellency. Compared to BIOLAY 100, the solutions of BIOLAY 500 exhibit higher viscosities (for the same solids content).
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Biodegradability
> 85 % biodegradation after 28 days
Applications & Uses
- Markets
- Application Method
- Compatible Substrates & Surfaces
- Recommendation for Use
Preparing aqueous solutions of BIOLAY 500
BIOLAY 500 is water soluble and solutions of up to 20 % can be easily prepared. However, the following requirements need to be met:
- First, place the water in the respective vessel and subsequently add the appropriate amount of BIOLAY 500. The slower the addition of the powder the easier it can be dissolved. We recommend to use soft water, otherwise precipitations can occur.
- Vigorous stirring or a make-down unit substantially facilitate the dissolving process.
- Higher temperatures (maximum 60 °C) accelerate the dissolving process and reduce the viscosity.
Appearance of aqueous solutions
The aqueous solutions of BIOLAY 500 have an amber color. This color originiates from insoluble constituents of the natural raw material. They cannot be removed during the production process of the powder product. These insoluble constituents precipitate over time, especially in low viscosity solutions (<5 %).
Stability of aqueous solutions
BIOLAY 500 does not contain any preservatives. While the powder product is stable for 12 months under dry storing conditions, the aqueous solutions have a limited shelf life.
If the aqueous solutions need to be stored for longer periods, we recommend the use of preservatives.Formulation recommendations
The solutions of BIOLAY 500 are compatible with hydrophobic additives such as synthetic (e. g. AKD) or natural waxes (e. g. CHT-COAT WAX E-7007). We recommend the addition of wax additives for reducing the COBB value. As a rule of thumb from 5 to 15 % of wax can be added to the BIOLAY solution.
- Application Technique
Application Fields
The aqueous solutions of BIOLAY 500 can be applied with all standard coating equipments such as film press, size press, blade coater or curtain coater. Depending on the application method and the required viscosity, we recommend to prepare the following solutions:
- Brookfield viscosity <50 mPas (RT, 100 rpm): 5 % solution
- Brookfield viscosity max. 300 mPas (RT, 100 rpm): 10 % solution
Properties
- Physical Form
- Appearance
- Off-white powder
- Typical Properties
- Film Properties
- Foulard Applicator
Product Dry coating
amount
[g/m²]KIT* COBB
60sSchiffchen-Test
Oil penetration10 min 60 min 24 h BIOLAY 500 0,4 2* 30 0 8 35 - The base paper is a highly refined virgin fiber paper (untreated).
- (*) The KIT test is not fully applicable.
- The viscosities of the formulations have been kept <100 mPa·s at RT.
- Note
(*) The KIT test is not fully applicable.
- Stabilities
BIOLAY 500 is stable under standard coating formulation pH values (pH 5 – 8). Extremely low (pH <3) and high pH values (pH >10) lead to decomposition of the product.
| Value | Units | Test Method / Conditions | |
| pH Value (2 % Solution) | 6 - 8 | — | — |
| Viscosity of 5 % Solution (RT, at 100 rpm) | max. 50 | mPa·s | — |
| Viscosity of 10 % Solution (RT, at 100 rpm) | max. 300 | mPa·s | — |
| Value | Units | Test Method / Conditions | |
| Dry Coating Amount | 3.3 | g/m² | — |
| KIT* | 5* | — | — |
| COBB (60s) | 30 | — | — |
| Schiffchen-Test Oil Penetration (10 min) | 0 | — | — |
| Schiffchen-Test Oil Penetration (60 min) | 0 | — | — |
| Schiffchen-Test Oil Penetration (24h) | 4 | — | — |
| High Voltage Tracking Resistance (RT, 24h) | 18 | g/m²*day | — |
| Oxygen Transmission Rate (5cm²) | 300 | cm³/m²·d·bar | — |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Technical Details & Test Data
- Viscosity
- Test Data
BIOLAY 500 Chemistry Combination of Polysaccharides Ionic Character Weakly anionic Strengths Grease ++ HVTR ++ OTR ++ COBB − - Process
-
Raw material Powder reactor at CHT BIOLAY 500
1 % solution: min. 5.000 mPa·s Solid state reaction 10 % solution: max. 300 mPa·s
Not applicable Applicable
- Baking Tests
-
- A hydrophobic additive improves the release, e.g. AKD.
- The application amount of AKD is limited to 0.5 % according to BfR XXXVI/2, i.e. 0.25 g/m² for a 50 g/m² paper.
Storage & Handling
- Shelf Life
- 12 months
- Storage Information
- The product in powder form can be stored under dry ambient conditions for 12 months.
- The shelf life of aqueous solutions without preservative is limited.