Specialist Red Rhodamine B Spray Marker Dye

Specialist Red Spray Marker Dye is an APVMA-registered liquid spray indicator containing 150 g/L Rhodamine B, designed for use in Australian broadacre, pasture, and horticultural herbicide and pesticide spray programs.

It works with both liquid and powder herbicide products, delivering a clear red colouration to mark treated areas and reduce the risk of missed zones or costly double-application. Specialist Red also converts white foam to a distinct pink colour when used with foam marker systems, making it a versatile dual-purpose indicator suited to a range of spray equipment setups. Specialist Sales Pty Ltd manufactures and supplies Specialist Red across Australia in 1L, 5L and 20L pack sizes to suit operations of all scales.

Pack Sizes: 1L, 5L, 20L Registrant: Specialist Sales Pty Ltd (APVMA #: 80263/100496)

Similar Or Comparable To Rhodamine Red Spray Marker Dye (Weed Force),  Rhodamark Spray Marker Dye (Alphakem) & Rhodamine Marker 150 (Apparent)

Click For Technical Info & Tips For Use
4 out of 5 (6 customers reviews)

QuantityDiscountStatus
2 or more$65.00 eachAvailable
2 or more$130.00 eachAvailable
2 or more$325.00 eachAvailable
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This item is large and requires a courier! Ensure a courier can reach your address.
Don’t worry, shipping is STILL FREE!
Click here for shipping info or give us a call.

Ordering multiple large items? They will be shipped on a skid or pallet to ensure that your items arrive safely and securely. The delivery truck will need to be unloaded with a forklift. If you do not have a forklift, please provide an address where a forklift is present.

Specialist Red Rhodamine B Spray Marker Dye MARKER-DYE-SPEC-SALES Specialist Sales

Description

Specialist Red Rhodamine B Spray Marker Dye

Specialist Red Spray Marker Dye is an APVMA-registered spray indicator containing 150 g/L Rhodamine B, formulated to mark treated areas during herbicide and pesticide spray applications in Australian agricultural and horticultural operations. Registered and manufactured by Specialist Sales Pty Ltd, it works with both liquid and powder herbicide products, delivering a clear red colouration in the spray solution so operators can track exactly where the product lands. As a result, it reduces the risk of missed areas and prevents costly double-application across broadacre, pasture, and row crop programs.

Furthermore, Specialist Red Spray Marker Dye converts white foam to a distinct pink colour when used with foam marker systems, making it a practical dual-purpose spray indicator. Its water-soluble Rhodamine B formula mixes readily in standard spray tanks and suits a wide range of tank-mix programs. Notably, the product is not to be used for any purpose other than that indicated on the label, unless authorised under appropriate legislation.

Frequently Asked Questions

Q. What does Specialist Red Spray Marker Dye do?

A. It adds clear red colouration to spray solutions so operators can identify treated areas in real time. This tracking reduces missed zones and prevents double-application waste across paddock spray programs.

Q. What is the active constituent in Specialist Red Spray Marker Dye?

A. The active constituent is 150 g/L Rhodamine B. This is the same constituent statement as shown on the APVMA-approved label (Approval No. 80263/100496).

Q. What is the correct application rate for spray marking?

A. Apply at 5-10 mL per 10 litres of spray solution, or 50-100 mL per 100 litres. Use the higher rate when more intense colour marking is required.

Q. Can Specialist Red be used with foam marker systems?

A. Yes. Apply at 20-30 mL per 10 litres of diluted foam mixture. This converts white foam to a distinct pink colour for easier area identification in specific field situations.

Q. Is Specialist Red compatible with amine-based herbicides such as 2,4-D Amine 500 and MCPA 500?

A. Yes, with a specific mixing sequence. Mix the Red Spray Marker Dye thoroughly with water before adding the herbicide. Then slowly add the herbicide whilst the spray is being agitated. Clean the tank and equipment thoroughly after each use.

Marker Dye Product Range

Features & Benefits

  • Contains 150 g/L Rhodamine B, delivering strong, visible red colouration in herbicide and pesticide spray solutions for clear area identification
  • Works with both liquid and powder herbicide products, covering a wide range of agricultural spray programs
  • Converts white foam to a distinct pink colour when used with foam marker systems, providing dual-purpose spray marking capability
  • Reduces double-application risk by allowing operators to track treated areas in real time during spray operations
  • Suitable for broadacre cropping, pasture management, and horticultural spray programs
  • Water-soluble formula mixes readily in standard spray tanks with no specialist equipment required
  • Available in 1L, 5L and 20L pack sizes to suit small operators through to large-scale production programs
  • APVMA-registered product (APVMA #80263/100496), manufactured and supplied by Specialist Sales Pty Ltd

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4.83 out of 5 stars

6 reviews

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What others are saying

  1. One person found this helpful
    Brett

    Red dye

    Brett (verified owner)

    Excellent product, quick delivery

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  2. One person found this helpful
    Mark

    It's ok

    Mark (verified owner)

    I like being able to see what I’ve sprayed and find this essential for sanity as much as being practical but I needed to use a good 200mL per 100L which is over double the 50 to 100 on the label. Acknowledged that the disclaimer says increase as required but it makes it quite expensive. Have not tried other brands. Used in St Johns Wort mix so you’d think it wouldn’t be hard to turn a yellow flower red but as I said it needed much more.

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  3. Paul Griggs

    Paul Griggs (verified owner)

    Its the best one i have used. Good price Works perfect and fast delivery

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  4. Peter Boyd

    Customer service

    Peter Boyd (verified owner)

    Purchased two litres. Quality product delivered to Brisbane overnight. Helpful who know their stuff.

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  5. GG

    Fantastic stuff

    GG (verified owner)

    I should have used this product earlier. It is great and saves me time and chemicals. Really good company to deal with. A wealth of information.

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  6. One person found this helpful
    Richard Dobie

    Great service, great product!

    Richard Dobie (verified owner)

    This is the second time I have bought a 20 litre drum of Specialist Red Spray Marker Dye. The dye is excellent quality at a good price and the staff are ultra helpful.

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Directions Of Use

Click here for Specialist Red Spray Marker Dye directions for use

Specialist Red Spray Marker Dye adds a bold red colouration to spray solutions to identify treated areas during herbicide and pesticide applications. It suits both liquid and powder herbicide programs. For foam marker use, it converts white foam to pink for clearer identification in the field.

Rate of Application:

Rate Volume Critical Comments
5-10 mL Per 10 litres of spray solution Use a higher rate if more intense colour marking is required
50-100 mL Per 100 litres of spray solution
20-30 mL Per 10 litres of the diluted foam marker mixture Will convert white foam to pink for easier identification in specific situations

Rates are a general guide only. Before opening, carefully read Specialist Red Spray Marker Dye directions for use, precautionary and protection statements, storage and disposal, safety directions and first aid instructions. The product is designed for the particular purpose indicated on the label. Failure to use the product strictly as directed may be illegal and dangerous, and render the product ineffective.

Questions and answers from customers

    Is Specialist Red Spray Marker Dye (Rhodamine) soluble with Access Herbicide and diesel?

  1. Q Is Specialist Red Spray Marker Dye (Rhodamine) soluble with Access Herbicide and diesel?
    Asked by Thomas on June 8, 2025 11:25 am
    A

    The registered 'directions of use' for Access Herbicide recommend that it is only compatible with diesel and Biosafe and should not be used or diluted with any other chemicals. Specialist Red Spray Marker Dye (Rhodamine) is designed to be mixed with water-based pesticide spray solutions and is not specifically indicated for use with diesel. 

  2. HI, how long does the colour from Specialist Red Spray Marker Dye remain visible once sprayed?

  3. Q HI, how long does the colour from Specialist Red Spray Marker Dye remain visible once sprayed?... Read more
    Asked by MVR on May 28, 2023 1:02 pm
    Answered by the admin

    The visibility and longevity of colour from a rhodamine marker dye ( Specialist Red Spray Marker Dye) applied with pesticides can vary depending on several factors, including the formulation of the pesticide, environmental conditions, and the specific application method used. Rhodamine marker dyes are fluorescent dyes often added to pesticide formulations to aid in tracking and visualizing the application. They are typically brightly coloured, allowing applicators to see where the pesticide has been applied. However, it's important to note that the primary purpose of these dyes is to assist with application accuracy and coverage rather than providing long-lasting visual effects. The duration of colour visibility can range from a few hours to a few days, depending on the factors mentioned. Environmental factors such as sunlight, rainfall, and soil conditions can impact the dye's persistence. Exposure to sunlight can cause the dye to fade quickly, while heavy rainfall or irrigation may wash it away sooner.

    Additionally, certain soil types may absorb or break down the dye more rapidly than others. It's worth noting that the colour from a rhodamine marker dye is temporary and does not indicate the persistence or effectiveness of the pesticide itself. The dye is primarily used as a visual aid during application to ensure even coverage and to help prevent under-or over-application.

  4. Is Specialist Red Spray Marker Dye (Rhodamine) biodegradable?

  5. Q Is Specialist Red Spray Marker Dye (Rhodamine) biodegradable?
    Asked by Tony paci on September 3, 2022 10:44 am
    A

    Specialist Red Spray Marker Dye (Rhodamine) makes no claims of being biodegradable.  If you are looking for a biodegradable marking dye you may want to consider Biodye Red Liquid Marking Dye  or Envirodye Red Liquid Marking Dye both of which are non-toxic, and biodegradable.

  6. What is the recommended percentage of dye per liter of spray?
  7. Q What is the recommended percentage of dye per liter of spray?
    Asked by Hollauf Ian on January 23, 2022 2:07 pm
    Answered by the admin

    The mixing rate for the Specialist Red Spray Marker Dye is 50mL - 100mL per 100L Water (0.5% - 1% of the spray mix).  Directions for use are available on the Specialist Sales website in the 'technical & SDS' tab.

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Disclaimer: This information and product advice is not intended to be advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.

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Herbicide Marking Additive & Foam Marker Dye Marker & Foam Marker

Tips For Use

Mixing Instructions:

  • When using in conjunction with amine-based products such as 2,4-D Amine 500 and MCPA 500, mix Specialist Red Spray Marker Dye thoroughly with water before adding the herbicide.
  • Then slowly add the herbicide whilst the spray is being agitated.
  • Thoroughly clean out the tank and equipment after each use.

General Instructions:

  • Suitable for use with both liquid and powder herbicide products.
  • When used as a spray marker colouring agent, white foam will become pink in colour to assist identification.
  • Not to be used for any purpose other than indicated on this label unless authorised under appropriate legislation.

Compatibility:

  • Incompatible with oxidising agents, and with zinc, tin, aluminium, and their alloys. Do not mix or store in containers made from these materials.

Protection of Wildlife, Fish, Crustaceans and the Environment:

  • Do not contaminate streams, rivers or waterways with chemical or used containers.

Storage:

  • Store in the closed, original container in a cool, well-ventilated area.
  • Do not store for prolonged periods in direct sunlight. Protect from light.
  • Triple or preferably pressure rinse containers before disposal. Add rinsings to the spray tank.
  • Do not dispose of undiluted chemicals on site.
  • If recycling, replace the cap and return clean containers to a recycler or designated collection point.
  • If not recycling, break, crush or puncture and bury empty containers in a local authority landfill. If no landfill is available, bury the containers below 500 mm in a disposal pit specifically marked and set up for this purpose, clear of waterways, desirable vegetation and tree roots.
  • Empty containers should not be burnt.

Safety Directions:

  • Keep out of reach of children.
  • Do not swallow. Avoid contact with eyes and skin.
  • Do not inhale spray mist.
  • Wash your hands after use.
  • Wear protective gloves, protective clothing and eye or face protection during handling.
  • If product contacts the eyes, rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do, then continue rinsing. Seek immediate medical attention.
  • If swallowed, do not induce vomiting. Rinse mouth with water and contact a Poisons Information Centre or doctor immediately.

First Aid:

  • If poisoning occurs, contact a doctor or the Poisons Information Centre. Phone Australia 131 126.
  • For further information, refer to the Safety Data Sheet (SDS).

This information and product advice are not intended as advice or recommendations for any specific use or circumstance. You should seek specialist advice before using any product. Always follow the manufacturer’s guidelines. Specialist Sales liability is limited.

Withholding Period

Withholding Period Details (WHP): 

  • Not applicable when used as directed.

SDS & Technical

Specialist Red Spray Marker Dye Label (APVMA) Download Pdf
Specialist Red Spray Marker Dye Label Download Pdf
Specialist Red Spray Marker Dye SDS Download Pdf

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