Product - Mr. JO Primer – UPS

Description

Mr. JO Primer – UPS is a two-part, solvent-free epoxy primer. It is flowable and non-porous. It ensures strong adhesion and protection. Moreover, it performs well in wet, moist, and damp conditions.

• Color: Brownish
• Pot life @25°C: 80-100 mins
• Mixing Ratio: 100:50 PBW
• Mixture consistency: Medium viscosity liquid
• Damp, moist & underprepared substrate curing
• Coverage: 4 m²/kg
• Optics: Transparent/Translucent

• Concrete strengthening
• Adhesion promoter
• Sealer coat

• The mixture should be applied on a clean and rough surface. For good results, it is required that the substrate is free from loose particles.
• Suitable degreasing agent should be used to remove any grease, oil or traces on the surface.

• Surfaces should be freed from laitance and dust by sand-blasting. In case sand blasting is not possible, thorough abrading with a hard wire brush should be preferable. Suitable degreasing agent should be used to remove any grease, oil or traces on the surface.
• Mix the two components together thoroughly for at least 2 minutes so as to achieve uniform mixing and thorough consistency of the mix. Apply the mix using brush or spatula to the pretreated surfaces.
• Allow 4-5 hours for surface to dry and 24 hours to achieve full strength.

A1. MR. JO Primer – UPS is a special-purpose epoxy primer designed to work on damp, wet, or under-prepared concrete surfaces. It is ideal for:

• Sites with rising dampness or residual moisture
• Rain-affected areas where drying isn't possible
• Old or rough concrete where surface prep is limited

A2.

• UPS can cure even on damp or wet surfaces, where MVC and LVC cannot
• It is formulated with special wet-bonding epoxy resins
• Performs better on under-prepared or imperfectly cleaned surfaces
• Offers improved bonding strength in tough on-site conditions

A3. The mix ratio is typically 100:50 by weight (resin: hardener). Always mix thoroughly and use within the specified pot life for optimal results.

A4. Yes. UPS is functionally comparable to Araldite GY 250 with Aradur 450, widely used for damp or difficult concrete bonding in construction and infrastructure repair.

A5. Yes. It is specially designed to cure and adhere on damp or wet concrete, including:

• Rain-washed surfaces
• Damp patches or rising ground moisture
• Substrates where drying time is limited due to project urgency

A6.

• Remove standing water or puddles, but surface can remain visibly damp
• Mix components thoroughly
• Apply with roller, brush, or squeegee
• Let it become tack-free before applying screeds, mortars, or coatings

A7. Absolutely. UPS is compatible with:

• Epoxy underlays and screeds
• Self-leveling flooring systems
• Protective coatings or topcoats It helps prevent debonding where moisture would otherwise disrupt adhesion.

A8.

• Coverage: 4–5 m²/kg (depending on surface condition)
• Pot Life: ~45–60 minutes at 25°C
• Tack-Free Time: ~4–6 hours Avoid applying in standing water or pooling conditions.

A9. No. While it bonds on damp surfaces, it does not block long-term moisture migration. For full moisture barrier systems, a dedicated epoxy moisture barrier coating is recommended.

A10.

• Basements with residual dampness
• Coastal or high-humidity areas
• Rain-affected construction sites
• Repairs in monsoon or early-morning conditions

A11. Once applied, UPS begins curing and is resistant to rewetting within 1–2 hours. However, avoid water exposure until tack-free for best results.

A12.

• If overcoated within 24 hours, no sanding is needed
• After 24 hours, light sanding or surface activation is advised for best intercoat adhesion

A13.

• Store indoors in a dry, sealed container
• Avoid freezing or prolonged sunlight exposure
• Shelf life: 12 months if stored properly