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Learn more by watching our Macsim 53TRGT | Silicone MF50 Roof & Gutter Translucent video.
The Macsim 53TRGT is a one-part neutral-cure silicone sealant rated for roof, gutter, and general weatherproofing applications, delivering ±25% joint movement capability and 700% elongation at break. The 53TRGT works without primer on galvanised iron, sheet metal, aluminium, glass, and most plastics, and is compliant for indoor and outdoor use across the full -40°C to +90°C service temperature range. Electricians and air conditioning contractors apply the 53TRGT to drilled holes, electrical entries, and weatherproof box seams to create a waterproof barrier that inhibits moisture ingress into live outlets and ductwork.
The translucent colour blends seamlessly into metal flashing, gutters, and exposed ductwork without the stark appearance of opaque sealants. Tradies value the 53TRGT for its fast cure time — a firm skin forms within one hour, and full cure completes within seven days — allowing next-stage work to proceed without extended delays. The low odour and high 700% elongation at break make the sealant suitable for metal surfaces that expand and contract with temperature changes, common on metal roofs and tank installations. UV stable and waterproof, the 53TRGT maintains flexibility in harsh Australian climates without hardening or losing adhesion over time.
The 300ml tube is the standard size for site work, delivering 300g per minute extrudability through a caulking gun, so beads are laid quickly without pressure-induced hand fatigue. Neutral cure chemistry means no acetic acid release, making it safe for use near sensitive electronics and air conditioning sensors. Colorbond roofing, metal water tanks, flashing, and skylight seams all benefit from the 53TRGT's primer-less adhesion and flexible long-term seal.
The Macsim 53TRGT is not suitable for submerged applications such as swimming pools or aquariums, structural or insulated glazing systems, surfaces prone to bleeding (marble, granite, or natural stone), or plastics such as polyethylene, polypropylene, and Teflon. The 53TRGT cannot be painted and should not be used on surfaces where paint adhesion is required.
(53TRGT)
The 53TRGT is a one-part sealant. No mixing is required. Simply cut the cartridge nozzle to your desired bead width, load it into a caulking gun, and extrude directly onto the joint or seam.
Yes. The 53TRGT bonds directly to Colorbond metal roofing without primer. It is also suitable for galvanised iron, sheet metal, and painted metal surfaces. Ensure the surface is clean and dry before application.
No. The 53TRGT offers primer-less adhesion to glass, aluminium, and most plastics. For substrates where adhesion is uncertain, conduct a test bond on a hidden area first, or contact Macsim for technical guidance.
A firm skin forms within one to two hours at 25°C and 50% relative humidity. Full cure takes seven days. Cold weather extends cure time. The 53TRGT can be tooled within a few minutes of application, before skin forms, using a wet tool or spatula.
No. The 53TRGT cannot be painted. If a painted finish is required, a different sealant (such as an acrylic or polyurethane) should be selected. The translucent colour of the 53TRGT is intended to blend into metal surfaces without painting.
The 53TRGT has a 12-month shelf life when stored in a dry environment between +5°C and +25°C. Ensure the cartridge is kept sealed and away from moisture and heat to maintain sealability.
The Macsim 53TRGT is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
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If your order arrives damaged or is faulty, let us know within 24 hours.
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How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 30 Day
Commercial Use: 30 Day
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Macsim |
| SKU | 53TRGT |
| Barcode # | 9312862062920 |
| Package Weight | 0.358kg |
| TYPE | VALUE |
|---|---|
| Type | Silicon |
| Brand | Macsim |
| Colour | Translucent |
| Length (mm) | 240 |
| Tensile Strength | 1.3MPa |
| Sag | <1mm |
| Movement Capability | ± 25% |
| Curing Method | Neutral cure |
| Extrudability | 300g/min |
| Elongation @ Break | 700% |
| Service Temperature | -40ºC to +90ºC |
| Shore A. Hardness | 32 |
| VOC Rating | Low |
| Application Temperature | +5° to +45°C |
| Specific Gravity | 1.0 g/mL |
| Rate of Cure | >3mm in 24 hours >6mm in 7 days |
| Recovery Elastic | >90% |
| Skinning Time | 2-15 minutes @ 25ºC, 50% Relative Humidity |
| Volume (mL) | 300 |
| Box increments (This item is sold individually) | 10 |
| Diameter (mm) | 47 |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
For website terms and conditions https://www.sparkydirect.com.au/terms-of-use
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