MicroPro FAQ's - Koppers Preserved Timber

 

1. What is MICROPRO ® and MICROPRO MICRONIZED TIMBER®?
MICROPRO® is a waterborne, alkaline micronized copper quaternary azole preservative system developed to provide long-term protection of timber exposed in interior and exterior applications. The MICROPRO® preservative system is based on the well-established effectiveness of micronized copper combined with an organic quaternary compound and azoles and is applied to timber by pressure treatment.

 

MICROPRO® treated timber is available for the following use classes: UC1 -UC3 Above ground, UC4 ground contact and fresh water contact. MICROPRO® treated timber products are not currently approved for saltwater immersion applications.

Pressure treated timber with MICROPRO® technology may be branded as MICROPRO MICRONIZED TIMBER® which indicates that it has been produced in accordance with an Osmose quality programme. This material may be supplied with a performance warranty.

 

2. Are MICROPRO® treated timber products available in different colours?
MICROPRO® treated timber is available in natural colour and an attractive hardwood brown colour known as MICROSHADES®. The MICROSHADES® colour pigment system is used to achieve the attractive and durable colour tones.

Check with your building material supplier for availability in your area.

 

3. Is MICROPRO MICRONIZED TIMBER® treated timber code approved?
MICROPRO MICRONIZED treated timber® meets all major building code requirements. Installation must comply with the requirements of all applicable local and national building codes.

 

4. How are MICROPRO® preservatives applied?
MICROPRO MICRONIZED TIMBER® preservatives are applied in factory controlled applications to ensure suitable preservative retentions and protection.

 

5. MICROPRO MICRONIZED TIMBER® has achieved UL GREENGUARD GOLD Certifcation what does this mean?
GREENGUARD GOLD Certification indicates that a product has undergone rigorous testing and has met stringent standards for low volatile organic compound (VOC) emissions. Products certified to this criteria are suitable for use in schools, offices, and other sensitive environments.

 

Products bearing the UL GREENGUARD GOLD Certification mark meet strict testing criteria for volatile organic compounds (VOCs), helping to reduce indoor air pollution, minimize chemical exposure and create healthier indoor environments.

GREENGUARD Children & Schools SM Certification program improves air quality by certifying products low volatile organic chemical (VOC) emissions. The stringent standards of the program help minimize the impact potentially harmful chemicals can have on children.

 

Osmose MicroPro® technology has achieved the GREENGUARD Children & Schools Certification.

The GREENGUARD Environmental Institute is an industry independent, third party not-for-profit organization that oversees the GREENGUARD certification programmes. The mission of the institute is to protect human health and quality of life through programmes that reduce chemical exposure and improve indoor air quality.

 

The GREENGUARD Environmental (GEI) has achieved ISO/IEC Guide 65:1996 accreditation- the world's most prestigious endorsements of a product certification program as developed by the International Organization for Standardization.

The GREENGUARD Environmental (GEI )is an American National Institute (ANSI) authorized standards developer.

For further information please visit www.greenguard.org

6. Can Fixings and Fasteners can be used with MICROPRO MICRONIZED TIMBER® treated timber.
Yes, MicroPro® technology offers many benefits including significantly improved corrosion performance. Wood treated with MicroPro® technology exhibits corrosion rates on metal products similar to CCA pressure treated wood and untreated wood.

For interior or exterior applications, use fasteners and hardware that are in compliance with the manufacturer's recommendations and the building codes for their intended use. As with any good design and construction practices, MicroPro® treated wood should not be used in applications where trapped moisture or water can occur. Where design and/or actual conditions allow for constant, repetitive or long periods of wet conditions, only stainless steel fasteners should be used. Aluminium contact is permitted.

 

7. What are retentions or retention levels?
Retention levels refer to the amount of preservative retained in the timber following the treatment process. Retention levels can be different based on the timber preservative system used to pressure treat the timber product and its intended end use or use class (UC) (UC4 ground contact, (UC1 – UC3 above ground contact). It is important to purchase treated timber products for the intended exposure condition. Typically, timber products are treated for "above ground use" and "ground contact/fresh water immersion use.

 

8. Is maintenance required on pressure treated timber projects?
Nothing is "maintenance-free". Pressure treated timber products help protect timber from fungal decay and termite attack. However, moisture, sun, and outdoor conditions may cause the timber project to show signs of weathering.

Natural weathering such as raised grain, splitting, checking, twisting, warping, shrinkage, or swelling occurs in timber treated or untreated.

 

To help reduce the effects of natural weathering, the use of a clear water repellent coating or a semi-transparent water repellent coating product is recommended.

If you desire to apply a paint, stain, clear water repellent, or other finish to your preservative treated timber, we recommend following the manufacturer's instructions and label of the finishing product. Before you start, we recommend you apply the finishing product to a small exposed test area before completing the entire project to ensure it provides the intended result before proceeding.

 

9. Can I paint pressure treated timber?
Yes. If you desire to apply a paint, stain, clear water repellent, or other finish to your preservative treated timber, we recommend following the manufacturer's instructions and label of the finishing product.

Before you start, we recommend you apply the finishing product to a small exposed test area before completing the entire project to ensure it provides the intended result before proceeding.

 

10. How does mould affect pressure treated timber?
Mould occurring on pressure treated timber products is typically not an indication of fungal decay attack.

Mould growth can and does occur on the surface of many products, including untreated and treated timber, during prolonged surface exposure to excessive moisture conditions.

 

To remove mould from the treated timber surface, timber should be allowed to dry. Typically, mild soap and water can be used to remove remaining surface mould.

 

11. What is the best treatment for staining/sealing my deck?
Depending on the look you want to achieve you can use a clear water repellent coating or a semi-transparent water repellent coating product. If you desire to apply a paint, stain, clear water repellent, or other finish to your preservative treated timber, we recommend following the manufacturer's instructions and label of the finishing product. Before you start, we recommend you apply the finishing product to a small exposed test area before completing the entire project to ensure it provides the intended result before proceeding.

 

12. How often do I have to apply a finish to treated timber?
Most water repellent coating manufacturers recommend an annual application. We recommend you follow the manufactures' instructions.

 

13. My deck has not kept its original pressure treated timber colour. How can I restore the appearance of the treated timber?
There are several pressure treated timber deck cleaning products on the market that are available and can be purchased from hardware stores or home centres. These cleaning products are typically referred to as cleaners, brighteners and restorers. Always follow the manufacturer's recommendations.

 

14. Can I use a pressure washer on pressure treated timber?
Yes, follow the pressure washer manufacturer's recommendations.

 

15. Can I use treated timber in my raised vegetable bed?
MICROPRO MICRONIZED TIMBER® treated timber products may be used to construct raised bed gardens. MICROPRO MICRONIZED TIMBER® treated timber products for raised bed gardens should be treated for ground contact Use Class (UC4).

 

Very small amounts of copper and quaternary will migrate out of MICROPRO MICRONIZED TIMBER® treated timber over time. If it is desirable to minimize the migration of copper or quat into the soil of a raised bed garden, we recommend that a suitable thin plastic material be used as a barrier between the MICROPRO MICRONIZED TIMBER® treated timber and the raised bed garden soil.

 

The use of a plastic barrier will also help keep the raised bed garden soil within the bed area. For proper drainage, the plastic material should not be used underneath the raised bed garden soil.

 

16. Is it safe to use treated timber in a picnic table or on countertops?
MICROPRO MICRONIZED TIMBER® pressure treated timber products can be used for outdoor picnic tables. We recommend that the picnic table be covered to prevent food from contacting the timber surface. It is not recommended that any treated timber product be used as a countertop. Do not put food directly in contact with treated timber.

 

17. Can I use treated timber in feed troughs for livestock?
Do not use preserved timber under circumstances where the preservative may become a component of food, animal feed, or beehives.