Sika 107 vs SikaTop 107
Which Pack You Are Actually Ordering (2026)

“Sika 107” is a shorthand, not a product name

Ask around a Klang Valley hardware shop for “Sika 107” and you will be handed something. Ask two shops and you may be handed two different things, because the number on its own is not a product. Sika Malaysia’s published waterproofing-mortars range lists three products in that family — SikaTop Seal-107 (MY), SikaTop Seal-109 MY and Sikalastic-1 KMY — and the 107 designation also appears on a separate one-component product, SikaTop Seal-107 Fibre MY, listed under Sika Malaysia’s home-improvement range. Nothing is listed as plain “Sika-107”.

That matters far more than it sounds. The two products carrying 107 are not variants of one another in the way “same thing, one has fibre in it” suggests. One is a two-component set where a liquid polymer is mixed with a cement powder. The other is a single cement-based bag you add water to. They arrive in different pack weights, they are mixed by different people to different rules, and Sika lists different coverage schedules for them. If your quotation, your material order or your WhatsApp message to a supplier says only “Sika 107”, the decision about which one lands on your bathroom floor has been delegated to whoever picks the stock.

This page is only about that ordering confusion. If you want the wider map of Sika’s categories — the plugging compounds, the liquid roof membranes, the sealants — that is covered in the Sika waterproofing guide, and choosing a brand at all is covered in best waterproofing products. Neither is repeated here.

The two products that actually carry 107

Everything in the table below is taken from Sika Malaysia’s own product pages for the two products. Read it as the specification difference, not as a ranking — neither one is “better”, they are listed for different situations.

The single most useful row is the first one: two components versus one. That difference decides who can mix it, what goes wrong when it is mixed badly, and what the finished coat is being asked to do.

SikaTop Seal-107 (MY): the two-part set

Sika Malaysia describes SikaTop Seal-107 (MY) as a two part polymer modified cementitious waterproof mortar slurry, made up of a liquid polymer and a cement based mix incorporating special admixtures, applied to concrete and mortar to prevent water infiltration. It is supplied pre-batched — a 5 kg liquid can and a 20 kg powder bag making a 25 kg set — and Sika lists pre-batched components as one of the product’s advantages, because the correct ratio is in the box rather than in someone’s judgement.

That pre-batching is also where site practice goes astray. Sika’s own guidance is that mixing the full quantities of both components gives a slurry consistency, and that the consistency can be altered by reducing the amount of Part A used — for trowel application, to around 90 per cent of Part A, roughly 4.5 kg to a 20 kg bag of Part B. Note the direction of that instruction: it permits less liquid for a stiffer trowel mix. It is not an invitation to add water to make a thin coat go further. A crew that stretches the set by watering it down has changed the product, and no coverage figure on the datasheet applies any more.

Sika lists the uses as interior and exterior waterproofing and damp-proofing of concrete, cementitious rendering, brickwork and blockwork; exterior waterproofing of basement walls in new construction and refurbishment; and waterproofing of concrete surfaces including bathrooms, roofs, balconies, basements and water tanks. The stated advantages are pre-batched components that mix and apply easily, good adhesion to sound prepared substrates, non-toxic and suitable for contact with drinking water, and non-corrosive to steel or iron.

SikaTop Seal-107 Fibre MY: the one-bag mortar

SikaTop Seal-107 Fibre MY is a different animal despite the shared number. Sika describes it as a one component waterproofing mortar, cement based, with selected aggregates, recycled material and admixture; it incorporates synthetic resins, and Sika describes the result as slightly more flexible than a normal mortar while remaining waterproofing but permeable to water vapour. Sika also states that it slows the progression of carbonation.

The listed uses overlap with the two-part product but are worded differently and are worth reading closely: rigid waterproofing of water tanks, bathrooms and toilets; interior and exterior waterproofing of concrete, rendering, brickwork and blockwork; exterior waterproofing of basement walls; sealing hairline cracks in concrete; and filling pores and blowholes. Two of those — crack sealing and blowhole filling — are repair and make-good jobs rather than membrane jobs, which tells you something about where this product sits in a system.

It comes as a 20 kg bag, not a set, and Sika’s stated application is a minimum of two coating layers, possibly three where leakage is extremely strong, at a minimum of 1 mm and a maximum of 2 mm per layer. If someone hands you a single 20 kg bag when your quotation said “Sika 107” and you were expecting a two-part set, that is not a substitution error you should wave through — it is a different specification, and it deserves a conversation before the bag is opened.

The 109 trap: the word “flexible” sits on a different number

Here is the detail that trips up people who are trying to do the right thing. In Sika Malaysia’s waterproofing-mortars listing, the word flexible is attached to two products, and neither of them is 107. SikaTop Seal-109 MY is described as a polymer-modified, flexible, cementitious waterproofing coating. Sikalastic-1 KMY is described as a one component fibre reinforced, flexible cementitious waterproofing compound. Seal-107 (MY) is described as polymer modified; Seal-107 Fibre is described as slightly more flexible than a normal mortar.

So if the reason you are buying a cementitious product is that the substrate moves — a screed with hairline cracking, a balcony slab, a roof deck that heats and cools every day — the number you have written down may not be the number that carries the property you actually need. This page will not tell you that one product bridges cracks and another does not, because that is a datasheet claim and it belongs to Sika, not to us. What it will tell you is the question to ask: “what crack-bridging figure does the datasheet state for the exact product you are quoting, and at what thickness?” If the answer is a shrug, you do not yet have a specification. The wider comparison between rigid and flexible systems is set out in cementitious waterproofing and flexible waterproofing membranes.

Coverage and coats: the figures to hold an applicator to

Coverage is the number that decides whether you got a membrane or a coloured wash, and it is the number most often quietly abandoned on site. Both Sika Malaysia product pages publish one, and they are not the same schedule — another reason the shared “107” is misleading.

Use those figures as arithmetic, not as trivia. Multiply the stated rate per coat by your floor and upstand area, multiply by the number of coats, and compare the answer with how much material actually turns up on site. A bathroom that should have consumed two full bags and consumed one did not get the specification you paid for, whatever the finished surface looks like. Sika Malaysia publishes the current figures on the product page for each item, and versions are revised — ask for the data sheet edition for the pack being delivered rather than relying on a number from a guide, this one included. That single habit is the difference between a specification and a hope, and it is the theme of why waterproofing fails.

Which one is listed for which job

Both products are listed by Sika for overlapping situations, which is exactly why the ordering confusion survives. The differences that actually decide a job are below, drawn from the two product pages.

Water tanks and drinking water: the one claim worth checking

Among the advantages Sika Malaysia lists for SikaTop Seal-107 (MY) is that it is non toxic and suitable for contact with drinking water, and the page names potable concrete water tanks among its uses. It also lists the product as non-corrosive to steel or iron. Those are meaningful statements for anyone lining a domestic tank, and they are exactly the sort of claim that must be read off the current data sheet for the product actually being supplied rather than assumed from a family name.

The practical rule for a potable tank is simple and worth following even when the paperwork looks fine. Confirm the drinking-water statement in writing for the exact product and pack. Confirm what the applicator will do about cleaning and flushing before the tank is returned to service. And confirm the waiting period the data sheet requires before the tank is filled, because a coat that is filled too early has not finished becoming what it is supposed to be. Tank work in general, including the sequence for taking a tank out of service and recommissioning it, is covered in RC water tank internal waterproofing and water tank leak repair.

How the mix-up actually happens when you order

Nobody sets out to buy the wrong product. The substitution happens through a chain of small, reasonable-looking steps, and knowing the chain is how you break it.

1. The quotation abbreviates. A line reads “waterproofing — Sika 107, 2 coats”. Everyone reading it pictures something slightly different.
2. The number gets typed differently everywhere. The same family appears in the wild as SikaTop Seal-107, Sika Top Seal 107, SikaTop 107 and Sikatop-107. Search results and listing titles blur them together, and component letters get transposed in listing titles too. The pack in your hand is the authority, not the listing that sold it.
3. Stock decides. Whatever is on the shelf that morning goes into the van. A 20 kg bag and a 25 kg set both satisfy “Sika 107” to a storeman.
4. Nobody re-reads the pack. Two-part or one-part is visible on the packaging in seconds, and that check almost never happens because the number matched.
5. The coverage schedule silently changes. The two products have different stated consumption rates, so the material quantity that was right for one is wrong for the other, and the shortfall shows up as a thin coat rather than as a missing bag.

Breaking the chain costs one sentence in your quotation and one photograph on delivery day. How to read a waterproofing quotation covers what else belongs on that document.

What to ask before the material is ordered

• The full product name as printed on the pack, not a number — including whether it is the Fibre product and whether it is the Malaysian pack.
• Whether it is one component or two, and the pack weight being delivered.
• The data sheet edition for that pack, sent to you as a file before the job starts.
• The coverage rate per coat the applicator is working to, and the number of coats.
• The total quantity of material being ordered for your measured area, so the arithmetic is on the record.
• The upstand height at every wall and kerb, stated as a dimension rather than “as required”.
• What surface preparation is included, and what happens if the substrate turns out to be unsound when it is exposed.
• For a potable tank, the drinking-water statement for the exact product, in writing.
• The waiting period before covering or filling, and what test is done before anything hides the work.

The wider vetting list is in questions to ask a waterproofing contractor, and the patterns worth walking away from are in waterproofing scams.

How to check it was applied properly

A cementitious waterproofing coat is checkable for a short window and invisible afterwards, so the checks have to be booked rather than remembered.

• Photograph the empty packs. Before anything is thrown away, photograph the packaging with the product name legible and count them. That is your evidence that the quantity matched the calculated coverage.
• Photograph each coat. Different-coloured coats are easier to verify; ask for a photograph of the full area after each one, including corners and behind the door.
• Check the upstands. Walk the perimeter and confirm the coat continues up the wall to the stated height everywhere, not just where it is easy to see.
• Check the details. Floor traps, pipe penetrations and the wall-floor angle are where leaks start. They should be visibly detailed, not simply painted over.
• Ask for a ponding test before tiling, and be present when it is filled and when it is read. The method is set out in bathroom waterproofing.
• Do not accept tiling over a coat that has not had its waiting period. Once the tiles are down, the evidence is gone and so is the cheap moment to fix anything.

When a 107-class product is the wrong tool entirely

Plenty of Malaysian leaks get a cementitious slurry thrown at them when the problem is not one a surface coat can solve. Three cases come up constantly.

Water is already coming through to the floor below. If a ceiling downstairs is wet, the water has found a path through the slab, and a coat applied to the top face of a tiled floor does not close it. That is injection or a full re-waterproof, and the choice between them is set out in injection versus membrane waterproofing and PU injection for a leaking ceiling.

The substrate moves. A rigid coat over a crack that opens and closes fails at the crack, and reapplying the same product produces the same result. That is the case for a flexible system, and it is a specification decision to make before ordering, not after the second failure.

The real problem is grout, not waterproofing. Water going through open grout joints into a sound slab is a re-grouting job with a completely different price. Grouting versus waterproofing separates the two, and it is worth reading before anyone hacks a floor.

What the installed job costs

The figures below are for the installed system — supply and apply by a contractor — not for a pack on a shelf. Product retail prices move with pack size, grade and dealer, and this page deliberately does not quote them; ask your supplier for the current shelf price of the exact pack. These are market bands for a first conversation (market estimate 2026, indicative Klang Valley):

For a bathroom, the number most people actually want is the job price rather than the rate. ClickBina re-waterproofs a bathroom at RM1,500 – RM3,500 per bathroom without hacking, or RM4,500 – RM9,000 per bathroom with tiles off and a new membrane — those are our prices, not a market range. Where the leak path is unclear, leak detection and assessment is RM300 – RM800 per visit, waived if you proceed with the repair. The per-square-foot bands and what drives them are broken down in waterproofing cost per square foot and bathroom waterproofing cost.

Why ClickBina

ClickBina waterproofs bathrooms, tanks, balconies and roofs across Kuala Lumpur and Selangor, and on a job like this the useful thing we bring is not a brand preference — it is a written specification. That means the exact product name and pack on the quotation rather than a number, the coverage rate and coat count stated up front, the upstand height given as a dimension, photographs of each coat before anything covers it, and a ponding test you are invited to watch. Where the leak path is not obvious we do a paid detection visit at RM300 – RM800 per visit and waive it if you proceed. Browse all of our waterproofing and leak repair services, or send photographs of the area and of any product already bought on WhatsApp for a fixed quote.